{"id":10142,"date":"2008-02-25T01:33:10","date_gmt":"2008-02-25T00:33:10","guid":{"rendered":"https:\/\/fjungclaus.de\/wp\/comets"},"modified":"2018-06-22T19:20:18","modified_gmt":"2018-06-22T17:20:18","slug":"comets","status":"publish","type":"page","link":"https:\/\/fjungclaus.de\/wp\/gallery\/astronomy\/comets","title":{"rendered":"Comets"},"content":{"rendered":"<ul>\n<li>Comets &#8211; Vagabonds of space<\/li>\n<li>Kometen &#8211; Die Vagabunden des Weltalls<\/li>\n<\/ul>\n\n\t\t<style type=\"text\/css\">\n\t\t\t#gallery-1 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-item {\n\t\t\t\tfloat: left;\n\t\t\t\tmargin-top: 10px;\n\t\t\t\ttext-align: center;\n\t\t\t\twidth: 33%;\n\t\t\t}\n\t\t\t#gallery-1 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-caption {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t\t\/* see gallery_shortcode() in wp-includes\/media.php *\/\n\t\t<\/style>\n\t\t<div data-carousel-extra='{\"blog_id\":1,\"permalink\":\"https:\\\/\\\/fjungclaus.de\\\/wp\\\/gallery\\\/astronomy\\\/comets\"}' id='gallery-1' class='gallery galleryid-10142 gallery-columns-3 gallery-size-thumbnail'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/fjungclaus.de\/wp\/gallery\/astronomy\/comets\/73p-schwassmann-wachmann-on-2006-03-24'><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"8183\" data-orig-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-schwassmann-wachmann-on-2006-03-24.jpg\" data-orig-size=\"1024,768\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"73P\/Schwassmann-Wachmann on 2006-03-24\" data-image-description=\"&lt;p&gt;[rem]:73p_20060324_soccnrabblmbwnn_rsz50_crp: Automatically generated by ape on 2008\/02\/25@00:53:54[\/rem]&lt;br \/&gt;\n[atable]&lt;\/p&gt;\n&lt;p&gt; [atr=title]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet 73P\/Schwassmann-Wachmann&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=description]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet 73P\/Schwassmann-Wachmann on 2006-03-24&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=imager]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]\u00a9 Frank Jungclaus&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=location]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Wedemark, near Hannover, Germany, 9.7\u00b0E, 52.6\u00b0N&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=date]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]24. March 2006, 01:26-02:42 UT+1h&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=conditions]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Temp. -1.5\u00b0C&lt;br \/&gt;\n   [*]Light haze&lt;br \/&gt;\n   [*]Visual limiting magnitude in UMi 4.2mag&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=telescope]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]115mm F\/7 with focal reducer 0.8x&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=mount]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Losmandy G11&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=camera]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Canon EOS 10d&lt;br \/&gt;\n   [*]RAW, 3072&#215;2048 pixels, ISO 800&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=focusing]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]DSLR-Focus V3.04&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=focallength]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]644mm @ F\/5.6&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=exposure]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]10 RAW images at ISO 800&lt;br \/&gt;\n   [*]10 x 300s= 3000s= 50min in total&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=guiding]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Autoguiding on nearby star&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=processing]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*][b]Iris V5.30:[\/b]&lt;br \/&gt;\n   [*]Median dark frame generation&lt;br \/&gt;\n   [*]Dark frame subtraction&lt;br \/&gt;\n   [*]Hotpixel removal&lt;br \/&gt;\n   [*]Raw conversion&lt;br \/&gt;\n   [*]Registration \/ composit on comets head&lt;br \/&gt;\n   [*]Background gradient removal&lt;br \/&gt;\n   [*]Logarithmic scaling&lt;br \/&gt;\n   [*]Color correction&lt;br \/&gt;\n   [*]Adaptive noise filtering with &quot;Minimum Mean-Square Error&quot; method, separately done on R\/G\/B&lt;br \/&gt;\n   [*]Resize&lt;br \/&gt;\n   [*]Crop&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=remark]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]While preparing my image setup for a later on imaging session an C2006 A1 Pojmanski, I used Arcturus for focusing. Then, while looking to &quot;Cartes du Ciel&quot; running on my laptop, I suddenly saw 73P only a stone&#8217;s throw away from Arcturus. So I spontaneously decided to give 73P a try &#8230;&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;br \/&gt;\n[\/atable]&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-schwassmann-wachmann-on-2006-03-24-640x480.jpg\" data-large-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-schwassmann-wachmann-on-2006-03-24.jpg\" title=\"73P\/Schwassmann-Wachmann on 2006-03-24\" width=\"256\" height=\"192\" src=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-schwassmann-wachmann-on-2006-03-24-256x192.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-schwassmann-wachmann-on-2006-03-24-256x192.jpg 256w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-schwassmann-wachmann-on-2006-03-24-435x326.jpg 435w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-schwassmann-wachmann-on-2006-03-24-640x480.jpg 640w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-schwassmann-wachmann-on-2006-03-24-768x576.jpg 768w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-schwassmann-wachmann-on-2006-03-24.jpg 1024w\" sizes=\"auto, (max-width: 256px) 100vw, 256px\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/fjungclaus.de\/wp\/gallery\/astronomy\/comets\/73p-b-schwassmann-wachmann-fragment-b-on-2006-05-03'><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"8184\" data-orig-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-b-schwassmann-wachmann-fragment-b-on-2006-05-03.jpg\" data-orig-size=\"1024,768\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"73P-B\/Schwassmann-Wachmann, Fragment B, on 2006-05-03\" data-image-description=\"&lt;p&gt;[rem]:73p_b_20060503_bocpqaln_rsz50_crp: Automatically generated by ape on 2008\/02\/25@00:53:55[\/rem]&lt;br \/&gt;\n[atable]&lt;\/p&gt;\n&lt;p&gt; [atr=title]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet 73P-B\/Schwassmann-Wachmann&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=description]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet 73P-B\/Schwassmann-Wachmann, Fragment B, on 2006-05-03&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=imager]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]\u00a9 Frank Jungclaus&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=location]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Wedemark, near Hannover, Germany, 9.7\u00b0E, 52.6\u00b0N&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=date]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]03. May 2006, 03:15-03:28 UT+2h&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=conditions]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Temp. +10\u00b0C&lt;br \/&gt;\n   [*]Light haze&lt;br \/&gt;\n   [*]Visual limiting magnitude in UMi 4.3mag&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=telescope]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]115mm F\/7 with focal reducer 0.8x&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=mount]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Losmandy G11&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=camera]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Canon EOS 10d&lt;br \/&gt;\n   [*]RAW, 3072&#215;2048 pixels, ISO 1600&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=focusing]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]DSLR-Focus V3.04&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=focallength]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]644mm @ F\/5.6&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=exposure]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]6 RAW images at ISO 1600&lt;br \/&gt;\n   [*]6 x 120s= 720s= 12min in total&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=guiding]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Autoguiding on nearby star&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=processing]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*][b]Iris V5.30:[\/b]&lt;br \/&gt;\n   [*]Median dark frame generation&lt;br \/&gt;\n   [*]Dark frame subtraction&lt;br \/&gt;\n   [*]Hotpixel removal&lt;br \/&gt;\n   [*]Raw conversion&lt;br \/&gt;\n   [*]Registration \/ composite on comets head&lt;br \/&gt;\n   [*]Logarithmic scaling&lt;br \/&gt;\n   [*]Color adjustments&lt;br \/&gt;\n   [*]Adaptive noise filtering with &quot;Minimum Mean-Square Error&quot; method, separately done on R\/G\/B&lt;br \/&gt;\n   [*]Resize 50%&lt;br \/&gt;\n   [*]Crop to 1024&#215;768&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;br \/&gt;\n[\/atable]&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-b-schwassmann-wachmann-fragment-b-on-2006-05-03-640x480.jpg\" data-large-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-b-schwassmann-wachmann-fragment-b-on-2006-05-03.jpg\" title=\"73P-B\/Schwassmann-Wachmann, Fragment B, on 2006-05-03\" width=\"256\" height=\"192\" src=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-b-schwassmann-wachmann-fragment-b-on-2006-05-03-256x192.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-b-schwassmann-wachmann-fragment-b-on-2006-05-03-256x192.jpg 256w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-b-schwassmann-wachmann-fragment-b-on-2006-05-03-435x326.jpg 435w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-b-schwassmann-wachmann-fragment-b-on-2006-05-03-640x480.jpg 640w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-b-schwassmann-wachmann-fragment-b-on-2006-05-03-768x576.jpg 768w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-b-schwassmann-wachmann-fragment-b-on-2006-05-03.jpg 1024w\" sizes=\"auto, (max-width: 256px) 100vw, 256px\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/fjungclaus.de\/wp\/gallery\/astronomy\/comets\/73p-c-schwassmann-wachmann-fragment-c-on-2006-05-03'><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"8185\" data-orig-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-c-schwassmann-wachmann-fragment-c-on-2006-05-03.jpg\" data-orig-size=\"1024,768\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"73P-C\/Schwassmann-Wachmann, Fragment C, on 2006-05-03\" data-image-description=\"&lt;p&gt;[rem]:73p_c_20060503_cocpqaln_rsz50_crp: Automatically generated by ape on 2008\/02\/25@00:53:55[\/rem]&lt;br \/&gt;\n[atable]&lt;\/p&gt;\n&lt;p&gt; [atr=title]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet 73P-C\/Schwassmann-Wachmann&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=description]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet 73P-C\/Schwassmann-Wachmann, Fragment C, on 2006-05-03&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=imager]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]\u00a9 Frank Jungclaus&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=location]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Wedemark, near Hannover, Germany, 9.7\u00b0E, 52.6\u00b0N&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=date]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]03. May 2006, 02:30-03:08 UT+2h&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=conditions]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Temp. +10\u00b0C&lt;br \/&gt;\n   [*]Light haze&lt;br \/&gt;\n   [*]Visual limiting magnitude in UMi 4.3mag&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=telescope]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]115mm F\/7 with focal reducer 0.8x&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=mount]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Losmandy G11&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=camera]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Canon EOS 10d&lt;br \/&gt;\n   [*]RAW, 3072&#215;2048 pixels, ISO 1600&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=focusing]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]DSLR-Focus V3.04&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=focallength]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]644mm @ F\/5.6&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=exposure]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]13 RAW images at ISO 1600&lt;br \/&gt;\n   [*]13 x 120s= 1560s= 26min in total&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=guiding]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Autoguiding on comets head&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=processing]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*][b]Iris V5.30:[\/b]&lt;br \/&gt;\n   [*]Median dark frame generation&lt;br \/&gt;\n   [*]Dark frame subtraction&lt;br \/&gt;\n   [*]Hotpixel removal&lt;br \/&gt;\n   [*]Raw conversion&lt;br \/&gt;\n   [*]Registration \/ composite on comets head&lt;br \/&gt;\n   [*]Logarithmic scaling&lt;br \/&gt;\n   [*]Color adjustments&lt;br \/&gt;\n   [*]Adaptive noise filtering with &quot;Minimum Mean-Square Error&quot; method, separately done on R\/G\/B&lt;br \/&gt;\n   [*]Resize 50%&lt;br \/&gt;\n   [*]Crop to 1024&#215;768&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;br \/&gt;\n[\/atable]&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-c-schwassmann-wachmann-fragment-c-on-2006-05-03-640x480.jpg\" data-large-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-c-schwassmann-wachmann-fragment-c-on-2006-05-03.jpg\" title=\"73P-C\/Schwassmann-Wachmann, Fragment C, on 2006-05-03\" width=\"256\" height=\"192\" src=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-c-schwassmann-wachmann-fragment-c-on-2006-05-03-256x192.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-c-schwassmann-wachmann-fragment-c-on-2006-05-03-256x192.jpg 256w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-c-schwassmann-wachmann-fragment-c-on-2006-05-03-435x326.jpg 435w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-c-schwassmann-wachmann-fragment-c-on-2006-05-03-640x480.jpg 640w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-c-schwassmann-wachmann-fragment-c-on-2006-05-03-768x576.jpg 768w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/73p-c-schwassmann-wachmann-fragment-c-on-2006-05-03.jpg 1024w\" sizes=\"auto, (max-width: 256px) 100vw, 256px\" \/><\/a>\n\t\t\t<\/dt><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/fjungclaus.de\/wp\/gallery\/astronomy\/comets\/step-wedge-graustufenkeil-2'><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"8186\" data-orig-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2-viewcore-downloaditemg2-itemid947.jpg\" data-orig-size=\"600,80\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"g2 viewcore.DownloadItemg2 itemId947\" data-image-description=\"\" data-medium-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2-viewcore-downloaditemg2-itemid947.jpg\" data-large-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2-viewcore-downloaditemg2-itemid947.jpg\" title=\"g2 viewcore.DownloadItemg2 itemId947\" width=\"256\" height=\"34\" src=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2-viewcore-downloaditemg2-itemid947-256x34.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2-viewcore-downloaditemg2-itemid947-256x34.jpg 256w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2-viewcore-downloaditemg2-itemid947-435x58.jpg 435w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2-viewcore-downloaditemg2-itemid947.jpg 600w\" sizes=\"auto, (max-width: 256px) 100vw, 256px\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/fjungclaus.de\/wp\/gallery\/astronomy\/comets\/bradfield-c-2004-f4'><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"8187\" data-orig-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/bradfield-c-2004-f4.jpg\" data-orig-size=\"713,475\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Bradfield C\/2004 F4\" data-image-description=\"&lt;p&gt;[rem]:bradfieldnl: Automatically generated by ape on 2008\/02\/25@00:53:55[\/rem]&lt;br \/&gt;\n[atable]&lt;\/p&gt;\n&lt;p&gt; [atr=title]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Bradfield C\/2004 F4&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=description]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet Bradfield C\/2004 F4&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=imager]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*](c) Frank Jungclaus&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=location]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Wedemark, near Hannover, Germany&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=date]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]April 25, 2004, Between 03:10 and 03:58 UT&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=mount]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Tripod&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=camera]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Canon 10d DSLR with 17-40mm L, F\/4&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=focallength]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]40mm&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=exposure]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]14 raw-images, 800 ISO, F\/4, 112 seconds, 3072&#215;2048 pixels&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=guiding]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]No guiding. Camera fixed on tripod&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=processing]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]IRIS: crop, offset, 3 star registration to remove sky rotation, then registration on comets nucleus, logarithmic scaling, selective gaussian filter, 2 x soft-binning&lt;br \/&gt;\n   [*]Gimp: some level adjustment&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=remark]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Heavy ground level fog with visibility below 50m! It took me more then half an hour to find a location on a small hill 30m above the surrounding environment to come out of the fog.[br]After searching the &quot;hole in the fog&quot;, setting up the equipment and spending further 15 minutes to locate Bradfield with my 7&#215;50 field-glasses I found myself near end of the nautical twilight and the sky was already very bright! There is a second image from Bradfield to give an impression how bright the sky already was while taking the images.&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;br \/&gt;\n[\/atable]&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/bradfield-c-2004-f4-640x426.jpg\" data-large-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/bradfield-c-2004-f4.jpg\" title=\"Bradfield C\/2004 F4\" width=\"256\" height=\"171\" src=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/bradfield-c-2004-f4-256x171.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/bradfield-c-2004-f4-256x171.jpg 256w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/bradfield-c-2004-f4-435x290.jpg 435w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/bradfield-c-2004-f4-640x426.jpg 640w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/bradfield-c-2004-f4.jpg 713w\" sizes=\"auto, (max-width: 256px) 100vw, 256px\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/fjungclaus.de\/wp\/gallery\/astronomy\/comets\/bradfield-c-2004-f4-2'><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"8188\" data-orig-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId952.jpg\" data-orig-size=\"1024,682\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Bradfield C\/2004 F4\" data-image-description=\"&lt;p&gt;[rem]:bradfieldnl_o1: Automatically generated by ape on 2008\/02\/25@00:53:56[\/rem]&lt;br \/&gt;\n[atable]&lt;\/p&gt;\n&lt;p&gt; [atr=title]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Bradfield C\/2004 F4&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=description]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet Bradfield C\/2004 F4 &#8211; Scenery overwiew&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=info]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]This is one of the 14 images stacked for the previous Bradfield image, to give an impression how bright the sky already was while taking the images.&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=imager]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*](c) Frank Jungclaus&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=location]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Wedemark, near Hannover, Germany&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=date]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]April 25, 2004 03:42 UT&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=mount]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Tripod&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=camera]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Canon 10d DSLR with 17-40mm L, F\/4&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=focallength]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]40mm&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=exposure]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]800 ISO, F\/4, 8 seconds, 3072&#215;2048 pixels&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=guiding]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]No guiding. Camera fixed on tripod&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=processing]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Irfanview: Raw to jpg conversion and resize&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=remark]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Heavy ground level fog with visibility below 50m! It took me more then half an hour to find a location on a small hill 30m above the surrounding environment to come out of the fog.[br]After searching the &quot;hole in the fog&quot;, setting up the equipment and spending further 15 minutes to locate Bradfield with my 7&#215;50 field-glasses I found myself near end of the nautical twilight and the sky was already very bright!&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;br \/&gt;\n[\/atable]&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId952-640x426.jpg\" data-large-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId952.jpg\" title=\"Bradfield C\/2004 F4\" width=\"256\" height=\"171\" src=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId952-256x171.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId952-256x171.jpg 256w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId952-435x290.jpg 435w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId952-640x426.jpg 640w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId952-768x512.jpg 768w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId952.jpg 1024w\" sizes=\"auto, (max-width: 256px) 100vw, 256px\" \/><\/a>\n\t\t\t<\/dt><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/fjungclaus.de\/wp\/gallery\/astronomy\/comets\/c2006-a1-pojmanski-on-2006-03-24'><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"8189\" data-orig-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/c2006-a1-pojmanski-on-2006-03-24.jpg\" data-orig-size=\"1024,768\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"C2006\/A1 Pojmanski on 2006-03-24\" data-image-description=\"&lt;p&gt;[rem]:c2006a1_20060324_poccnqablbmnn_rsz50_crp: Automatically generated by ape on 2008\/02\/25@00:53:56[\/rem]&lt;br \/&gt;\n[atable]&lt;\/p&gt;\n&lt;p&gt; [atr=title]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]C2006\/A1 Pojmanski&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=description]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet C2006\/A1 Pojmanski on 2006-03-24&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=imager]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]\u00a9 Frank Jungclaus&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=location]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Wedemark, near Hannover, Germany, 9.7\u00b0E, 52.6\u00b0N&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=date]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]24. March 2006, 03:18-04:35 UT+1h&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=conditions]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Temp. -2\u00b0C&lt;br \/&gt;\n   [*]Light haze&lt;br \/&gt;\n   [*]Visual limiting magnitude in UMi only 3.0mag&lt;br \/&gt;\n   [*]Some cirrus clouds&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=telescope]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]115mm F\/7 with focal reducer 0.8x&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=mount]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Losmandy G11&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=camera]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Canon EOS 10d&lt;br \/&gt;\n   [*]RAW, 3072&#215;2048 pixels, ISO 1600&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=focusing]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]DSLR-Focus V3.04&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=focallength]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]644mm @ F\/5.6&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=exposure]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]12 RAW images at ISO 1600&lt;br \/&gt;\n   [*]12 x 240s= 2880s= 48min in total&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=guiding]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Autoguiding on nearby star&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=processing]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*][b]Iris V5.30:[\/b]&lt;br \/&gt;\n   [*]Median dark frame generation&lt;br \/&gt;\n   [*]Dark frame subtraction&lt;br \/&gt;\n   [*]Hotpixel removal&lt;br \/&gt;\n   [*]Raw conversion&lt;br \/&gt;\n   [*]Registration \/ composit on comets head&lt;br \/&gt;\n   [*]Logarithmic scaling&lt;br \/&gt;\n   [*]Color correction&lt;br \/&gt;\n   [*]Adaptive noise filtering with &quot;Minimum Mean-Square Error&quot; method, separately done on R\/G\/B&lt;br \/&gt;\n   [*]Resize&lt;br \/&gt;\n   [*]Crop&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;br \/&gt;\n[\/atable]&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/c2006-a1-pojmanski-on-2006-03-24-640x480.jpg\" data-large-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/c2006-a1-pojmanski-on-2006-03-24.jpg\" title=\"C2006\/A1 Pojmanski on 2006-03-24\" width=\"256\" height=\"192\" src=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/c2006-a1-pojmanski-on-2006-03-24-256x192.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/c2006-a1-pojmanski-on-2006-03-24-256x192.jpg 256w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/c2006-a1-pojmanski-on-2006-03-24-435x326.jpg 435w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/c2006-a1-pojmanski-on-2006-03-24-640x480.jpg 640w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/c2006-a1-pojmanski-on-2006-03-24-768x576.jpg 768w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/c2006-a1-pojmanski-on-2006-03-24.jpg 1024w\" sizes=\"auto, (max-width: 256px) 100vw, 256px\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/fjungclaus.de\/wp\/gallery\/astronomy\/comets\/c2006-a1-pojmanski-on-2006-03-08'><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"8190\" data-orig-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/c2006-a1-pojmanski-on-2006-03-08.jpg\" data-orig-size=\"1024,768\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"C2006\/A1 Pojmanski on 2006-03-08\" data-image-description=\"&lt;p&gt;[rem]:c2006_a1_pojmanski_20060803_pdhncrasrl_rsz_crp_nn: Automatically generated by ape on 2008\/02\/25@00:53:56[\/rem]&lt;br \/&gt;\n[atable]&lt;\/p&gt;\n&lt;p&gt; [atr=title]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]C2006\/A1 Pojmanski&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=description]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet C2006\/A1 Pojmanski on 2006-03-08&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=imager]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]\u00a9 Frank Jungclaus&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=location]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Wedemark, near Hannover, Germany, 9.7\u00b0E, 52.6\u00b0N&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=date]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]08. March 2006, 04:58-05:27 UT+1h&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=conditions]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Temp. -4\u00b0C&lt;br \/&gt;\n   [*]Light haze&lt;br \/&gt;\n   [*]Some cirrus clouds&lt;br \/&gt;\n   [*]Astronomical twilight already started&lt;br \/&gt;\n   [*]Forced to stop imaging after beginning of nautical twilight&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=mount]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Losmandy G11&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=camera]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Canon EOS 10d, 80-200mm F\/2.8&lt;br \/&gt;\n   [*]Used at 165mm, F\/3.5&lt;br \/&gt;\n   [*]RAW, 3072&#215;2048 pixels, ISO 800&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=focusing]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Autofocus on a bright nearby star&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=exposure]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]8 RAW images at ISO 800&lt;br \/&gt;\n   [*]8 x 120s= 960s= 16min in total&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=guiding]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]On the comets head&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=processing]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*][b]Iris V5.30:[\/b]&lt;br \/&gt;\n   [*]Median dark frame generation&lt;br \/&gt;\n   [*]Dark frame subtraction&lt;br \/&gt;\n   [*]Hotpixel removal&lt;br \/&gt;\n   [*]Raw conversion&lt;br \/&gt;\n   [*]Registration on comets head&lt;br \/&gt;\n   [*]Background gradient removal&lt;br \/&gt;\n   [*]Logarithmic scaling&lt;br \/&gt;\n   [*]Color correction&lt;br \/&gt;\n   [*]Resize&lt;br \/&gt;\n   [*]Crop&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=remark]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Length of tail ~2.5\u00b0!!&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;br \/&gt;\n[\/atable]&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/c2006-a1-pojmanski-on-2006-03-08-640x480.jpg\" data-large-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/c2006-a1-pojmanski-on-2006-03-08.jpg\" title=\"C2006\/A1 Pojmanski on 2006-03-08\" width=\"256\" height=\"192\" src=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/c2006-a1-pojmanski-on-2006-03-08-256x192.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/c2006-a1-pojmanski-on-2006-03-08-256x192.jpg 256w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/c2006-a1-pojmanski-on-2006-03-08-435x326.jpg 435w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/c2006-a1-pojmanski-on-2006-03-08-640x480.jpg 640w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/c2006-a1-pojmanski-on-2006-03-08-768x576.jpg 768w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/c2006-a1-pojmanski-on-2006-03-08.jpg 1024w\" sizes=\"auto, (max-width: 256px) 100vw, 256px\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/fjungclaus.de\/wp\/gallery\/astronomy\/comets\/machholz-c-2004-q2-2005-apr-01'><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"8191\" data-orig-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-2005-apr-01.jpg\" data-orig-size=\"1024,712\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"Machholz, C\/2004 Q2, 2005 Apr 01\" data-image-description=\"&lt;p&gt;[rem]:gc_nn_gcorr: Automatically generated by ape on 2008\/02\/25@00:53:56[\/rem]&lt;br \/&gt;\n[atable]&lt;\/p&gt;\n&lt;p&gt; [atr=title]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Machholz, C\/2004 Q2&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=description]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet Machholz, C\/2004 Q2&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=imager]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]\u00a9 Frank Jungclaus&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=location]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Wedemark, near Hannover, Germany, 9.7\u00b0E, 52.6\u00b0N&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=date]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]2005 Apr 01, 01:35 UT+1&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=conditions]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]2\u00b0C&lt;br \/&gt;\n   [*]Light haze&lt;br \/&gt;\n   [*]Limiting magnitude, visual: 5.2mag&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=mount]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Losmandy G11&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=camera]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Canon 10D&lt;br \/&gt;\n   [*]80-200L F\/2.8 piggy back on 10&quot; Meade SCT&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=focallength]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]200mm @ F\/3.4&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=exposure]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]7 x 300s= 2100s= 35min, 1600ASA&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=processing]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*][b]Iris:[\/b]&lt;br \/&gt;\n   [*]Registration of 7 images&lt;br \/&gt;\n   [*]Sky background gradient removal&lt;br \/&gt;\n   [*]Logarithmic scaling&lt;br \/&gt;\n   [*]Histogram adjustments&lt;br \/&gt;\n   [*]Color adjustments&lt;br \/&gt;\n   [*]Resize&lt;br \/&gt;\n   [*]Crop&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;br \/&gt;\n[\/atable]&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-2005-apr-01-640x445.jpg\" data-large-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-2005-apr-01.jpg\" title=\"Machholz, C\/2004 Q2, 2005 Apr 01\" width=\"256\" height=\"178\" src=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-2005-apr-01-256x178.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-2005-apr-01-256x178.jpg 256w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-2005-apr-01-435x302.jpg 435w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-2005-apr-01-640x445.jpg 640w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-2005-apr-01-768x534.jpg 768w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-2005-apr-01.jpg 1024w\" sizes=\"auto, (max-width: 256px) 100vw, 256px\" \/><\/a>\n\t\t\t<\/dt><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/fjungclaus.de\/wp\/gallery\/astronomy\/comets\/17p-holmes-on-2007-12-01'><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"8192\" data-orig-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/17p-holmes-on-2007-12-01.jpg\" data-orig-size=\"1024,683\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"17P\/Holmes on 2007-12-01\" data-image-description=\"&lt;p&gt;[rem]:hdcrsabwm_crp_rsz1024: Automatically generated by ape on 2008\/02\/25@00:53:57[\/rem]&lt;br \/&gt;\n[atable]&lt;\/p&gt;\n&lt;p&gt; [atr=title]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet 17P\/Holmes&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=description]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet 17P\/Holmes on 2007-12-01&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=imager]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]\u00a9 Frank Jungclaus&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=location]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Wedemark, near Hannover, Germany, 9.7\u00b0E, 52.6\u00b0N&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=date]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]01. Dec 2007, 21:24 UT+1h&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=conditions]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Temp. +6\u00b0C&lt;br \/&gt;\n   [*]Wind 5 Bft! Wind gusts ruined most exposures &#8230;&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=telescope]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Canon EF 200 F\/2.8&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=mount]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Losmandy G11&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=camera]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Canon EOS 30d&lt;br \/&gt;\n   [*]RAW, 3504&#215;2336 pixels, ISO 800&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=focusing]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Autofocus on a nearby bright star&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=focallength]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]200mm @ F\/2.8&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=exposure]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]4 RAW images at ISO 800&lt;br \/&gt;\n   [*]4 x 120s= 480s= 8min in total&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=guiding]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Autoguiding on nearby star&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=processing]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*][b]Iris V5.51:[\/b]&lt;br \/&gt;\n   [*]Median dark frame generation&lt;br \/&gt;\n   [*]Dark frame \/ bias calibration&lt;br \/&gt;\n   [*]Hotpixel removal&lt;br \/&gt;\n   [*]Raw conversion&lt;br \/&gt;\n   [*]Registration \/ composite on comets head&lt;br \/&gt;\n   [*]Color adjustments&lt;br \/&gt;\n   [*]Resize + crop&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;br \/&gt;\n[\/atable]&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/17p-holmes-on-2007-12-01-640x427.jpg\" data-large-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/17p-holmes-on-2007-12-01.jpg\" title=\"17P\/Holmes on 2007-12-01\" width=\"256\" height=\"171\" src=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/17p-holmes-on-2007-12-01-256x171.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/17p-holmes-on-2007-12-01-256x171.jpg 256w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/17p-holmes-on-2007-12-01-435x290.jpg 435w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/17p-holmes-on-2007-12-01-640x427.jpg 640w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/17p-holmes-on-2007-12-01-768x512.jpg 768w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/17p-holmes-on-2007-12-01.jpg 1024w\" sizes=\"auto, (max-width: 256px) 100vw, 256px\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/fjungclaus.de\/wp\/gallery\/astronomy\/comets\/hyakutake-c-1996-b2'><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"8193\" data-orig-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/hyakutake-c-1996-b2.jpg\" data-orig-size=\"534,834\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"Hyakutake, C\/1996 B2\" data-image-description=\"&lt;p&gt;[rem]:image5_nnfiltered_crop_resize: Automatically generated by ape on 2008\/02\/25@00:53:57[\/rem]&lt;br \/&gt;\n[atable]&lt;\/p&gt;\n&lt;p&gt; [atr=title]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Hyakutake, C\/1996 B2&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=description]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet Hyakutake, C\/1996 B2&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=imager]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]\u00a9 Frank Jungclaus&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=location]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Max-Koch-Sternwarte Cuxhaven, Germany&lt;br \/&gt;\n   [*]8.69\u00b0E, 53.86\u00b0N&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=date]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Winter \/ spring 1996&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=camera]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Nikon FG-20, Kodak Ektachrome 400&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=remark]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Handwritten exposure data lost :-(&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;br \/&gt;\n[\/atable]&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/hyakutake-c-1996-b2-410x640.jpg\" data-large-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/hyakutake-c-1996-b2.jpg\" title=\"Hyakutake, C\/1996 B2\" width=\"164\" height=\"256\" src=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/hyakutake-c-1996-b2-164x256.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/hyakutake-c-1996-b2-164x256.jpg 164w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/hyakutake-c-1996-b2-240x375.jpg 240w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/hyakutake-c-1996-b2-410x640.jpg 410w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/hyakutake-c-1996-b2.jpg 534w\" sizes=\"auto, (max-width: 164px) 100vw, 164px\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/fjungclaus.de\/wp\/gallery\/astronomy\/comets\/hale-bopp-c-1995-o1'><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"8194\" data-orig-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/hale-bopp-c-1995-o1.jpg\" data-orig-size=\"527,562\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Hale-Bopp, C\/1995 O1\" data-image-description=\"&lt;p&gt;[rem]:kcdw_gimp_v1_nnfiltered: Automatically generated by ape on 2008\/02\/25@00:53:57[\/rem]&lt;br \/&gt;\n[atable]&lt;\/p&gt;\n&lt;p&gt; [atr=title]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Hale-Bopp, C\/1995 O1&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=description]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet Hale-Bopp, C\/1995 O1&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=imager]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]\u00a9 Frank Jungclaus&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=location]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Max-Koch-Sternwarte Cuxhaven, Germany&lt;br \/&gt;\n   [*]8.69\u00b0E, 53.86\u00b0N&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=date]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]End of March 1997&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=camera]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Nikon FG-20, Kodak Ektachrome 400&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=remark]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Handwritten exposure data lost :-(&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;br \/&gt;\n[\/atable]&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/hale-bopp-c-1995-o1.jpg\" data-large-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/hale-bopp-c-1995-o1.jpg\" title=\"Hale-Bopp, C\/1995 O1\" width=\"240\" height=\"256\" src=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/hale-bopp-c-1995-o1-240x256.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/hale-bopp-c-1995-o1-240x256.jpg 240w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/hale-bopp-c-1995-o1-352x375.jpg 352w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/hale-bopp-c-1995-o1.jpg 527w\" sizes=\"auto, (max-width: 240px) 100vw, 240px\" \/><\/a>\n\t\t\t<\/dt><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/fjungclaus.de\/wp\/gallery\/astronomy\/comets\/hale-bopp-c-1995-o1-2'><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"8195\" data-orig-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId978.jpg\" data-orig-size=\"528,841\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Hale-Bopp, C\/1995 O1\" data-image-description=\"&lt;p&gt;[rem]:kd_gimp_v1_nnfiltered: Automatically generated by ape on 2008\/02\/25@00:53:57[\/rem]&lt;br \/&gt;\n[atable]&lt;\/p&gt;\n&lt;p&gt; [atr=title]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Hale-Bopp, C\/1995 O1&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=description]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet Hale-Bopp, C\/1995 O1&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=imager]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]\u00a9 Frank Jungclaus&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=location]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Max-Koch-Sternwarte Cuxhaven, Germany&lt;br \/&gt;\n   [*]8.69\u00b0E, 53.86\u00b0N&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=date]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]End of March 1997&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=camera]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Nikon FG-20, Kodak Ektachrome 400&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=remark]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Handwritten exposure data lost :-(&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;br \/&gt;\n[\/atable]&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId978-402x640.jpg\" data-large-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId978.jpg\" title=\"Hale-Bopp, C\/1995 O1\" width=\"161\" height=\"256\" src=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId978-161x256.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId978-161x256.jpg 161w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId978-235x375.jpg 235w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId978-402x640.jpg 402w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId978.jpg 528w\" sizes=\"auto, (max-width: 161px) 100vw, 161px\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/fjungclaus.de\/wp\/gallery\/astronomy\/comets\/hale-bopp-c-1995-o1-3'><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"8196\" data-orig-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId982.jpg\" data-orig-size=\"880,560\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Hale-Bopp, C\/1995 O1\" data-image-description=\"&lt;p&gt;[rem]:kkcdw_gimp_v1_nnfiltered: Automatically generated by ape on 2008\/02\/25@00:53:57[\/rem]&lt;br \/&gt;\n[atable]&lt;\/p&gt;\n&lt;p&gt; [atr=title]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Hale-Bopp, C\/1995 O1&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=description]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet Hale-Bopp, C\/1995 O1&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=imager]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]\u00a9 Frank Jungclaus&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=location]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Max-Koch-Sternwarte Cuxhaven, Germany&lt;br \/&gt;\n   [*]8.69\u00b0E, 53.86\u00b0N&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=date]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]End of March 1997&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=camera]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Nikon FG-20, Kodak Ektachrome 400&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=remark]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Handwritten exposure data lost :-(&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;br \/&gt;\n[\/atable]&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId982-640x407.jpg\" data-large-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId982.jpg\" title=\"Hale-Bopp, C\/1995 O1\" width=\"256\" height=\"163\" src=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId982-256x163.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId982-256x163.jpg 256w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId982-435x277.jpg 435w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId982-640x407.jpg 640w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId982-768x489.jpg 768w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId982.jpg 880w\" sizes=\"auto, (max-width: 256px) 100vw, 256px\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/fjungclaus.de\/wp\/gallery\/astronomy\/comets\/17p-holmes-on-2007-11-12'><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"8197\" data-orig-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/17p-holmes-on-2007-11-12.jpg\" data-orig-size=\"1024,693\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"17P\/Holmes on 2007-11-12\" data-image-description=\"&lt;p&gt;[rem]:lccrlbafgw_crp_1024: Automatically generated by ape on 2008\/02\/25@00:53:58[\/rem]&lt;br \/&gt;\n[atable]&lt;\/p&gt;\n&lt;p&gt; [atr=title]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet 17P\/Holmes&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=description]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet 17P\/Holmes on 2007-11-12&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=imager]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]\u00a9 Frank Jungclaus&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=location]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Wedemark, near Hannover, Germany, 9.7\u00b0E, 52.6\u00b0N&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=date]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]12. Nov 2007, 23:53 UT+1h&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=conditions]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Temp. +2\u00b0C&lt;br \/&gt;\n   [*]Very humid, thin clouds passing&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=telescope]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Canon EF L IS 100-400&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=mount]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Losmandy G11&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=camera]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Canon EOS 30d&lt;br \/&gt;\n   [*]RAW, 3504&#215;2336 pixels, ISO 800&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=focusing]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Autofocus on a nearby bright star&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=focallength]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]300mm @ F\/5.6&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=exposure]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]2 RAW images at ISO 800&lt;br \/&gt;\n   [*]2 x 180s= 360s= 6min in total&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=guiding]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Autoguiding on nearby star&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=processing]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*][b]Iris V5.51:[\/b]&lt;br \/&gt;\n   [*]Median dark frame generation&lt;br \/&gt;\n   [*]Dark frame \/ bias calibration&lt;br \/&gt;\n   [*]Hotpixel removal&lt;br \/&gt;\n   [*]Raw conversion&lt;br \/&gt;\n   [*]Registration \/ composite on comets head&lt;br \/&gt;\n   [*]Logarithmic scaling&lt;br \/&gt;\n   [*]Color adjustments&lt;br \/&gt;\n   [*]Resize + crop&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=remark]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]The bright star at the lower right corner is Alpha Persei (Mirphak)&lt;br \/&gt;\n   [*]The Canon [b]EF L100-400mm f\/4.5-5.6 L IS[\/b] is a greater performer when used for nature photography under broad light. But using it fully open for astronomical imaging it shows a horrible and disappointing amount of coma.&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;br \/&gt;\n[\/atable]&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/17p-holmes-on-2007-11-12-640x433.jpg\" data-large-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/17p-holmes-on-2007-11-12.jpg\" title=\"17P\/Holmes on 2007-11-12\" width=\"256\" height=\"173\" src=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/17p-holmes-on-2007-11-12-256x173.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/17p-holmes-on-2007-11-12-256x173.jpg 256w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/17p-holmes-on-2007-11-12-435x294.jpg 435w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/17p-holmes-on-2007-11-12-640x433.jpg 640w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/17p-holmes-on-2007-11-12-768x520.jpg 768w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/17p-holmes-on-2007-11-12.jpg 1024w\" sizes=\"auto, (max-width: 256px) 100vw, 256px\" \/><\/a>\n\t\t\t<\/dt><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/fjungclaus.de\/wp\/gallery\/astronomy\/comets\/machholz-c-2004-q2-2005-01-15'><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"8198\" data-orig-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-2005-01-15.jpg\" data-orig-size=\"1024,633\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"Machholz, C\/2004 Q2, 2005-01-15\" data-image-description=\"&lt;p&gt;[rem]:mbrsmsslbgammawss_nnf: Automatically generated by ape on 2008\/02\/25@00:53:58[\/rem]&lt;br \/&gt;\n[atable]&lt;\/p&gt;\n&lt;p&gt; [atr=title]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Machholz, C\/2004 Q2&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=description]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet Machholz, C\/2004 Q2&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=imager]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]\u00a9 Frank Jungclaus&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=location]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Wedemark, near Hannover, Germany, 9.7\u00b0E, 52.6\u00b0N&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=date]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]2005 Jan 15, 23:05 UT+1&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=conditions]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]-2\u00b0C&lt;br \/&gt;\n   [*]No wind&lt;br \/&gt;\n   [*]Light ground fog&lt;br \/&gt;\n   [*]Equipment was completely glazed with frost&lt;br \/&gt;\n   [*]Used a hair dryer for serveral times to de-frost the optical front elements&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=mount]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Losmandy G11&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=camera]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Canon 10D&lt;br \/&gt;\n   [*]80-200L F\/2.8 piggy back on 10&quot; Meade SCT&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=focallength]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]200mm @ F\/3.5&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=exposure]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]3 x 200s= 600s= 10min, 1600ASA&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=processing]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*][b]Iris:[\/b]&lt;br \/&gt;\n   [*]Registration of 3 best images&lt;br \/&gt;\n   [*]Sky background gradient removal&lt;br \/&gt;\n   [*]Logarithmic scaling&lt;br \/&gt;\n   [*]Histogram adjustments&lt;br \/&gt;\n   [*]Color adjustments&lt;br \/&gt;\n   [*]Resize&lt;br \/&gt;\n   [*]Crop&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;br \/&gt;\n[\/atable]&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-2005-01-15-640x396.jpg\" data-large-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-2005-01-15.jpg\" title=\"Machholz, C\/2004 Q2, 2005-01-15\" width=\"256\" height=\"158\" src=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-2005-01-15-256x158.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-2005-01-15-256x158.jpg 256w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-2005-01-15-435x269.jpg 435w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-2005-01-15-640x396.jpg 640w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-2005-01-15-768x475.jpg 768w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-2005-01-15.jpg 1024w\" sizes=\"auto, (max-width: 256px) 100vw, 256px\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/fjungclaus.de\/wp\/gallery\/astronomy\/comets\/bradfield-c-2004-f4-april-25-2004'><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"8199\" data-orig-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/bradfield-c-2004-f4-april-25-2004.jpg\" data-orig-size=\"772,514\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"Bradfield C\/2004 F4, April 25, 2004\" data-image-description=\"&lt;p&gt;[rem]:resize_of_finrsub: Automatically generated by ape on 2008\/02\/25@00:53:58[\/rem]&lt;br \/&gt;\n[atable]&lt;\/p&gt;\n&lt;p&gt; [atr=title]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Bradfield C\/2004 F4&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=description]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet Bradfield C\/2004 F4&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=imager]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*](c) Frank Jungclaus&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=location]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Wedemark, near Hannover, Germany&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=date]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]April 25, 2004, Between 03:10 and 03:58 UT&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=mount]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Tripod&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=camera]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Canon 10d DSLR with 17-40mm L, F\/4&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=focallength]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]40mm&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=exposure]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]14 raw-images, 800 ISO, F\/4, 112 seconds, 3072&#215;2048 pixels&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=guiding]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]No guiding. Camera fixed on tripod&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=processing]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]IRIS: crop, offset, 3 star registration to remove sky rotation, then registration on comets nucleus, logarithmic scaling, selective gaussian filter, 2 x soft-binning&lt;br \/&gt;\n   [*]Gimp: some level adjustment&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=remark]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Heavy ground level fog with visibility below 50m! It took me more then half an hour to find a location on a small hill 30m above the surrounding environment to come out of the fog.[br]After searching the &quot;hole in the fog&quot;, setting up the equipment and spending further 15 minutes to locate Bradfield with my 7&#215;50 field-glasses I found myself near end of the nautical twilight and the sky was already very bright! There is a second image from Bradfield to give an impression how bright the sky already was while taking the images.&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;br \/&gt;\n[\/atable]&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/bradfield-c-2004-f4-april-25-2004-640x426.jpg\" data-large-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/bradfield-c-2004-f4-april-25-2004.jpg\" title=\"Bradfield C\/2004 F4, April 25, 2004\" width=\"256\" height=\"170\" src=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/bradfield-c-2004-f4-april-25-2004-256x170.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/bradfield-c-2004-f4-april-25-2004-256x170.jpg 256w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/bradfield-c-2004-f4-april-25-2004-435x290.jpg 435w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/bradfield-c-2004-f4-april-25-2004-640x426.jpg 640w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/bradfield-c-2004-f4-april-25-2004-768x511.jpg 768w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/bradfield-c-2004-f4-april-25-2004.jpg 772w\" sizes=\"auto, (max-width: 256px) 100vw, 256px\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/fjungclaus.de\/wp\/gallery\/astronomy\/comets\/machholz-c-2004-q2-near-the-pleiades'><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"8200\" data-orig-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-near-the-pleiades.jpg\" data-orig-size=\"1024,726\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"Machholz, C\/2004 Q2 near the Pleiades\" data-image-description=\"&lt;p&gt;[rem]:t4c1_nnf: Automatically generated by ape on 2008\/02\/25@00:53:58[\/rem]&lt;br \/&gt;\n[atable]&lt;\/p&gt;\n&lt;p&gt; [atr=title]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Machholz, C\/2004 Q2&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=description]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet Machholz, C\/2004 Q2 near the Pleiades&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=imager]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]\u00a9 Frank Jungclaus&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=location]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Wedemark, near Hannover, Germany, 9.7\u00b0E, 52.6\u00b0N&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=date]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]2005 Jan 08, 23:19 UT+1 &#8211; 2005 Jan 09, 01:35 UT+1&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=conditions]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]4\u00b0C&lt;br \/&gt;\n   [*]Wind: gusts up to 6-10 Bft!!!&lt;br \/&gt;\n   [*]Light haze&lt;br \/&gt;\n   [*]Stray light from newly installed street lights :-((&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=mount]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Losmandy G11&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=camera]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Canon 10D&lt;br \/&gt;\n   [*]80-200L F\/2.8 piggy back on 10&quot; Meade SCT&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=focallength]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]105mm @ F\/3.5&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=exposure]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]3 x 300s= 900s= 15min, 1600ASA&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=processing]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*][b]Iris:[\/b]&lt;br \/&gt;\n   [*]Registration of 3 best images&lt;br \/&gt;\n   [*]Sky background gradient removal&lt;br \/&gt;\n   [*]Logarithmic scaling&lt;br \/&gt;\n   [*]Histogram adjustments&lt;br \/&gt;\n   [*]Color adjustments&lt;br \/&gt;\n   [*]Resize&lt;br \/&gt;\n   [*]Crop&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;br \/&gt;\n[\/atable]&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-near-the-pleiades-640x454.jpg\" data-large-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-near-the-pleiades.jpg\" title=\"Machholz, C\/2004 Q2 near the Pleiades\" width=\"256\" height=\"182\" src=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-near-the-pleiades-256x182.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-near-the-pleiades-256x182.jpg 256w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-near-the-pleiades-435x308.jpg 435w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-near-the-pleiades-640x454.jpg 640w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-near-the-pleiades-768x545.jpg 768w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/machholz-c-2004-q2-near-the-pleiades.jpg 1024w\" sizes=\"auto, (max-width: 256px) 100vw, 256px\" \/><\/a>\n\t\t\t<\/dt><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/fjungclaus.de\/wp\/gallery\/astronomy\/comets\/machholz-c-2004-q2-near-the-pleiades-2'><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"8201\" data-orig-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId1001.jpg\" data-orig-size=\"1024,726\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"Machholz, C\/2004 Q2 near the Pleiades\" data-image-description=\"&lt;p&gt;[rem]:t4ci: Automatically generated by ape on 2008\/02\/25@00:53:59[\/rem]&lt;br \/&gt;\n[atable]&lt;\/p&gt;\n&lt;p&gt; [atr=title]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Machholz, C\/2004 Q2&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=description]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet Machholz, C\/2004 Q2 near the Pleiades&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=imager]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]\u00a9 Frank Jungclaus&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=location]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Wedemark, near Hannover, Germany, 9.7\u00b0E, 52.6\u00b0N&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=date]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]2005 Jan 08, 23:19 UT+1 &#8211; 2005 Jan 09, 01:35 UT+1&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=conditions]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]4\u00b0C&lt;br \/&gt;\n   [*]Wind: gusts up to 6-10 Bft!!!&lt;br \/&gt;\n   [*]Light haze&lt;br \/&gt;\n   [*]Stray light from newly installed street lights :-((&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=mount]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Losmandy G11&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=camera]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Canon 10D&lt;br \/&gt;\n   [*]80-200L F\/2.8 piggy back on 10&quot; Meade SCT&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=focallength]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]105mm @ F\/3.5&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=exposure]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]3 x 300s= 900s= 15min, 1600ASA&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=processing]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*][b]Iris:[\/b]&lt;br \/&gt;\n   [*]Registration of 3 best images&lt;br \/&gt;\n   [*]Sky background gradient removal&lt;br \/&gt;\n   [*]Logarithmic scaling&lt;br \/&gt;\n   [*]Histogram adjustments&lt;br \/&gt;\n   [*]Color adjustments&lt;br \/&gt;\n   [*]Resize&lt;br \/&gt;\n   [*]Crop&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=remark]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Same as &quot;t4c1_nnf.jpg&quot;, but with colors inverted to better point out the enormous length of the comets tail!&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;br \/&gt;\n[\/atable]&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId1001-640x454.jpg\" data-large-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId1001.jpg\" title=\"Machholz, C\/2004 Q2 near the Pleiades\" width=\"256\" height=\"182\" src=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId1001-256x182.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId1001-256x182.jpg 256w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId1001-435x308.jpg 435w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId1001-640x454.jpg 640w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId1001-768x545.jpg 768w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/g2_viewcore.DownloadItemg2_itemId1001.jpg 1024w\" sizes=\"auto, (max-width: 256px) 100vw, 256px\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/fjungclaus.de\/wp\/gallery\/astronomy\/comets\/2007n3-lulin-on-2009-03-03'><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"8595\" data-orig-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/2007n3-lulin-on-2009-03-03.jpg\" data-orig-size=\"1024,768\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"2007N3 &#8211; Lulin on 2009-03-03\" data-image-description=\"&lt;p&gt;[atable]&lt;\/p&gt;\n&lt;p&gt; [atr=title]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet 2007N3 (Lulin)&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=description]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet C\/2007N3 (Lulin) on 2009-03-03&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=imager]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]\u00a9 Frank Jungclaus&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=location]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Wedemark, near Hannover, Germany, 9.7\u00b0E, 52.6\u00b0N&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=date]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]2009 Mar. 03, 21:51 &#8211; 22:32 UT+1&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=conditions]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Temp. +5\u00b0C&lt;br \/&gt;\n   [*]High, thin cirrus clouds&lt;br \/&gt;\n   [*]Visual limiting magnitude in UMi only 3.5mag!!!&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=telescope]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Canon EF 200 F\/2.8 + Sigma 1.4x tele-extender&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=mount]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Losmandy G11&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=camera]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Canon EOS 10d&lt;br \/&gt;\n   [*]RAW, ISO 400&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=focusing]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Autofocus on a nearby bright star&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=focallength]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]280mm @ F\/4&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=exposure]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]8 RAW images, 3072&#215;2048 pixels, at ISO 400&lt;br \/&gt;\n   [*]8 x 180s= 1440s= 24min in total&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=guiding]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Autoguiding on comet&#8217;s head&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=processing]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*][b]DeepSkyStacker V3.2.2[\/b]&lt;br \/&gt;\n   [*]10 dark frames&lt;br \/&gt;\n   [*]16 Bias frames&lt;br \/&gt;\n   [*]16 Flat field frames&lt;br \/&gt;\n   [*]Hot pixel removal&lt;br \/&gt;\n   [*]Registration \/ composite on comets head&lt;br \/&gt;\n   [*][b]Iris V5.57[\/b]&lt;br \/&gt;\n   [*]Logarithmic stretching&lt;br \/&gt;\n   [*]Color adjustments&lt;br \/&gt;\n   [*]50% Resize + 1024&#215;768 crop from image center&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;br \/&gt;\n[\/atable]&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/2007n3-lulin-on-2009-03-03-640x480.jpg\" data-large-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/2007n3-lulin-on-2009-03-03.jpg\" title=\"2007N3 &#8211; Lulin on 2009-03-03\" width=\"256\" height=\"192\" src=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/2007n3-lulin-on-2009-03-03-256x192.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/2007n3-lulin-on-2009-03-03-256x192.jpg 256w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/2007n3-lulin-on-2009-03-03-435x326.jpg 435w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/2007n3-lulin-on-2009-03-03-640x480.jpg 640w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/2007n3-lulin-on-2009-03-03-768x576.jpg 768w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/2007n3-lulin-on-2009-03-03.jpg 1024w\" sizes=\"auto, (max-width: 256px) 100vw, 256px\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/fjungclaus.de\/wp\/gallery\/astronomy\/comets\/103p-hartley-on-2010-10-10'><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"9017\" data-orig-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/103p-hartley-on-2010-10-10.jpg\" data-orig-size=\"1000,1025\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"103P\/Hartley on 2010-10-10\" data-image-description=\"&lt;p&gt;[atable]&lt;\/p&gt;\n&lt;p&gt; [atr=title]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet 103P\/Hartley&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=description]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Comet 103P\/Hartley on 2010-10-10&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=imager]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]\u00a9 Frank Jungclaus&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=location]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Wedemark, near Hannover, Germany, 9.7\u00b0E, 52.6\u00b0N&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=date]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]2010 Oct. 10, 21:13 &#8211; 21:58 UT&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=conditions]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Temp. +4\u00b0C&lt;br \/&gt;\n   [*]No moon, sky background 20.6mag\/arcsec^2&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=telescope]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Canon EF 200 L F\/2.8&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=mount]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Losmandy G11&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=camera]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Canon EOS 10d&lt;br \/&gt;\n   [*]RAW, ISO 200&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=focusing]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Autofocus on a nearby bright star&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=focallength]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]200mm @ F\/3.1&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=exposure]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]14 RAW images, 3072&#215;2048 pixels, 180s @ ISO 200&lt;br \/&gt;\n   [*]14 x 180s= 2520s= 42min in total&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=guiding]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*]Autoguiding on comet&#8217;s head&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;\/p&gt;\n&lt;p&gt; [atr=processing]&lt;br \/&gt;\n  [list]&lt;br \/&gt;\n   [*][b]DeepSkyStacker V3.3.2[\/b]&lt;br \/&gt;\n   [*]16 dark frames&lt;br \/&gt;\n   [*]16 Bias frames&lt;br \/&gt;\n   [*]12 Flat field frames&lt;br \/&gt;\n   [*]Hot pixel removal&lt;br \/&gt;\n   [*]Registration \/ composite on comet&#8217;s head&lt;br \/&gt;\n   [*][b]Iris V5.58[\/b]&lt;br \/&gt;\n   [*]Logarithmic stretching&lt;br \/&gt;\n   [*]Color adjustments&lt;br \/&gt;\n   [*]50% Resize + crop&lt;br \/&gt;\n  [\/list]&lt;br \/&gt;\n [\/atr]&lt;br \/&gt;\n [atr=info]&lt;br \/&gt;\n   [url=http:\/\/en.wikipedia.org\/wiki\/103P\/Hartley]Wikipedia[\/url]:&lt;br \/&gt;\n   Comet Hartley 2, officially designated 103P\/Hartley, is a small periodic comet with an orbital period of 6.46 years. It was discovered by Malcolm Hartley in 1986 at the Schmidt Telescope Unit in Siding Spring, Australia. Its diameter is estimated to be 1.2 to 1.6 km. It will be the subject of a flyby by the Deep Impact spacecraft on November 4, 2010, with a closest approach of 700 kilometer &#8230;&lt;br \/&gt;\n [\/atr]&lt;br \/&gt;\n [atr=info]&lt;br \/&gt;\n[url=http:\/\/de.wikipedia.org\/wiki\/103P\/Hartley]Wikipedia[\/url]:&lt;br \/&gt;\n103P\/Hartley, informell auch als Hartley 2 bezeichnet, ist ein kurzperiodischer Komet mit einer Umlaufzeit von 6,46 Jahren. Er wurde 1986 von Malcolm Hartley mit dem UK Schmidt Telescope am Siding-Spring-Observatorium entdeckt.&lt;\/p&gt;\n&lt;p&gt;Die Raumsonde Deep Impact soll 103P\/Hartley am 4. November 2010 im Rahmen der der EPOXI-Mission in einer Entfernung von 700 km passieren.&lt;\/p&gt;\n&lt;p&gt;Der Komet wird am 20. Oktober 2010 in einer Entfernung von 0,12 AE an der Erde vorbeifliegen, nur acht Tage vor seinem Periheldurchgang (seiner n\u00e4chsten Entfernung zur Sonne) am 28. Oktober 2010. W\u00e4hrenddessen kann der Komet, der dann eine scheinbare Helligkeit von etwa 5 mag erreichen wird, mit blo\u00dfem Auge im Sternbild Schwan gesehen werden.&lt;\/p&gt;\n&lt;p&gt;Beobachtungen des Spitzer-Weltraumteleskops im August 2008 zeigten, dass der Kern des Kometen einen Radius von 0,57 \u00b1 0,08 km und eine Albedo von 0,028 hat. Die Masse des Kometes wird auf ungef\u00e4hr 3 \u2219 1011 kg gesch\u00e4tzt. Wenn der Kern nicht auseinanderbricht oder mit einem anderen Objekt zusammenst\u00f6\u00dft, wird er bei seinem momentanen Masseverlust von der Erde aus noch ca. 100 Mal sichtbar sein (das entspricht 700 Jahren). Es wird angenommen, dass Hartley 2 nach dem Durchgang 2010 das n\u00e4chste Mal am 20. April 2017 das Perihel durchl\u00e4uft &#8230;&lt;br \/&gt;\n [\/atr]&lt;br \/&gt;\n[\/atable]&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/103p-hartley-on-2010-10-10-624x640.jpg\" data-large-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/103p-hartley-on-2010-10-10.jpg\" title=\"103P\/Hartley on 2010-10-10\" width=\"250\" height=\"256\" src=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/103p-hartley-on-2010-10-10-250x256.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/103p-hartley-on-2010-10-10-250x256.jpg 250w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/103p-hartley-on-2010-10-10-366x375.jpg 366w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/103p-hartley-on-2010-10-10-624x640.jpg 624w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/103p-hartley-on-2010-10-10-768x787.jpg 768w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/103p-hartley-on-2010-10-10.jpg 1000w\" sizes=\"auto, (max-width: 250px) 100vw, 250px\" \/><\/a>\n\t\t\t<\/dt><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/fjungclaus.de\/wp\/gallery\/astronomy\/comets\/panstarrs-c-2011-l4'><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"9823\" data-orig-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/panstarrs-c-2011-l4.jpg\" data-orig-size=\"1280,853\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;2.8&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;Canon EOS 30D&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1363293836&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;200&quot;,&quot;iso&quot;:&quot;800&quot;,&quot;shutter_speed&quot;:&quot;2.5&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;,&quot;exposure_bias&quot;:&quot;0\\\/3&quot;,&quot;flash&quot;:&quot;16&quot;}\" data-image-title=\"Panstarrs C\/2011 L4\" data-image-description=\"&lt;p&gt;Comet Panstarrs C\/2011 L4, 2013-03-14 19:30 &#8211; 20:00 UT+1&lt;br \/&gt;\nBrelingen, B62, 52\u00b033&#8242; N \/ 9\u00b041&#8242; E&lt;\/p&gt;\n&lt;p&gt;Canon EOS30d, 800 ISO, 200mm F\/2.8 on tripod (no tracking).&lt;br \/&gt;\nExposure time 0.5s at first and 6s for the last pictures.&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/panstarrs-c-2011-l4-640x427.jpg\" data-large-file=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/panstarrs-c-2011-l4.jpg\" title=\"Panstarrs C\/2011 L4\" width=\"256\" height=\"171\" src=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/panstarrs-c-2011-l4-256x171.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/panstarrs-c-2011-l4-256x171.jpg 256w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/panstarrs-c-2011-l4-435x290.jpg 435w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/panstarrs-c-2011-l4-640x427.jpg 640w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/panstarrs-c-2011-l4-768x512.jpg 768w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/panstarrs-c-2011-l4-1170x780.jpg 1170w, https:\/\/fjungclaus.de\/wp\/wp-content\/uploads\/2008\/02\/panstarrs-c-2011-l4.jpg 1280w\" sizes=\"auto, (max-width: 256px) 100vw, 256px\" \/><\/a>\n\t\t\t<\/dt><\/dl>\n\t\t\t<br style='clear: both' \/>\n\t\t<\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Kometen &#8211; Die Vagabunden des Weltalls<\/p>\n","protected":false},"author":1,"featured_media":8185,"parent":10042,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-10142","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/fjungclaus.de\/wp\/wp-json\/wp\/v2\/pages\/10142","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fjungclaus.de\/wp\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/fjungclaus.de\/wp\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/fjungclaus.de\/wp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fjungclaus.de\/wp\/wp-json\/wp\/v2\/comments?post=10142"}],"version-history":[{"count":3,"href":"https:\/\/fjungclaus.de\/wp\/wp-json\/wp\/v2\/pages\/10142\/revisions"}],"predecessor-version":[{"id":10488,"href":"https:\/\/fjungclaus.de\/wp\/wp-json\/wp\/v2\/pages\/10142\/revisions\/10488"}],"up":[{"embeddable":true,"href":"https:\/\/fjungclaus.de\/wp\/wp-json\/wp\/v2\/pages\/10042"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fjungclaus.de\/wp\/wp-json\/wp\/v2\/media\/8185"}],"wp:attachment":[{"href":"https:\/\/fjungclaus.de\/wp\/wp-json\/wp\/v2\/media?parent=10142"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}