{"id":249,"date":"2006-04-30T01:00:00","date_gmt":"2006-04-30T01:00:00","guid":{"rendered":"http:\/\/perezmedia.net\/beltofvenus\/2006\/04\/30\/comet_73pschwas_3\/"},"modified":"2021-11-27T23:41:59","modified_gmt":"2021-11-27T23:41:59","slug":"comet_73pschwas_3","status":"publish","type":"post","link":"https:\/\/perezmedia.net\/beltofvenus\/2006\/04\/30\/comet_73pschwas_3\/","title":{"rendered":"73P\/Schwassmann-Wachmann 3-B and -C &#8211; April 29\/30, 2006"},"content":{"rendered":"<p><b>37.5X Telescopic sketch of Component C<\/b><br \/>\n<a href=\"javascript:myVoid()\" onmouseover=\"rollover('img2006042901_SW3C')\" onmouseout=\"rollout('img2006042901_SW3C')\"><img decoding=\"async\" src=\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2006\/img2006042901_SW3C_A.jpg\" name=\"img2006042901_SW3C\" alt=\"Step 1\" border=\"1\" color=\"FFFFFF\"><\/a><br \/>\n<script type=\"text\/javascript\"><br \/>\n<!--\nsetrollover(\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2006\/img2006042901_SW3C_B.jpg\");\n\/\/--><br \/>\n<\/script><\/p>\n<p><!-- br--><\/p>\n<p><b>37.5X Telescopic Sketch of Component B<\/b><br \/>\n<a href=\"javascript:myVoid()\" onmouseover=\"rollover('img2006042901_SW3B')\" onmouseout=\"rollout('img2006042901_SW3B')\"><img decoding=\"async\" src=\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2006\/img2006042901_SW3B_A.jpg\" name=\"img2006042901_SW3B\" alt=\"Step 1\" border=\"1\" color=\"FFFFFF\"><\/a><br \/>\n<script type=\"text\/javascript\"><br \/>\n<!--\nsetrollover(\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2006\/img2006042901_SW3B_B.jpg\");\n\/\/--><br \/>\n<\/script><\/p>\n<p><!-- br--><br \/>\n<!-- br--><!-- br--><\/p>\n<p><i>Move mouse over images to see labels.<\/i><\/p>\n<p><b>Observation Notes<\/b><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2006\/img2006042901_SW3finder.jpg\" align=\"right\" color=\"ffffff\" border=\"1\">I was out at Cinder Hills Overlook this evening, sharing the cul-de-sac with Bill Ferris and Brent Archinal. The thin crescent of a 2 and a half day old moon anchored the western sky like a solitary rivet lit from below. While we waited for it to set and give us a better view of the deep sky, Bill shared a 399X view of Saturn that was absolutely the best I have ever seen. The C ring was a crisply defined, yet thin gauze of gray. I was treated to detail on the disk of the planet I had never seen before, and the unexpected surprise of the Encke Minima.<\/p>\n<p>After the moon set, the 2 brightest fragments of Comet Schwassmann-Wachmann 3 put on a great show. &#8216;Beautiful&#8217; is the word that I can&#8217;t shake when I recall how they lit up the eyepiece. I&#8217;ve tried to capture that soft wonder in the sketches above, but it just isn&#8217;t possible.<\/p>\n<p>The tail of C swept off the southwest edge of the 88&#8242; wide field of view. The brighter, longer, inner fan of the tail was brightest along its southeast edge. Near the coma, this portion of the tail was further enveloped by a fainter, broader fan. At 240X, the pseudonucleus appeared stellar and an elongated bright streak flowed out to the southwest. I plotted it&#8217;s first position at 10:30 pm, and by 1:00 am when I returned, it had moved outside of my original sketch area (so that point isn&#8217;t marked in the rollover graphic).<\/p>\n<p>B was a bit fainter, but still wondrous. The tail also streamed away to the southwest, and was brighter along its northwest edge. A fainter gust fanned off the southeast side of the coma. At 240X, the pseudonucleus was soft and elongated. It hinted at clumpiness, but I didn&#8217;t spend much time examining the high-magnification details. Bill offered me a view of the R fragment through his 18&#8243; scope, and although faint, it was nice to have seen it.<\/p>\n<p>I also observed and sketched the B and C fragments in my 10 x 50 binoculars. The sketch was brushed onto a pre-printed star chart of the area. The C component was brightest, with its narrow tail stretching to the southwest and a little more than a degree in length. The B component was fainter, with a wide fan-shaped tail that was about 3\/4 of a degree in length. Both were separated by a bit more than 8.5 degrees. Unfortunately, they didn&#8217;t share the same binocular field like they did a week ago, but it was still nice to catch 2 bright comets so close to each other.<\/p>\n<p><b>10&#215;50 Binocular Sketch of Components B and C on pre-printed star chart<\/b><br \/>\n<a href=\"javascript:myVoid()\" onmouseover=\"rollover('img2006043001_SW3')\" onmouseout=\"rollout('img2006043001_SW3')\"><img decoding=\"async\" src=\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2006\/img2006043001_SW3_A.jpg\" name=\"img2006043001_SW3\" alt=\"Step 1\" border=\"1\" color=\"FFFFFF\"><\/a><br \/>\n<script type=\"text\/javascript\"><br \/>\n<!--\nsetrollover(\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2006\/img2006043001_SW3_B.jpg\");\n\/\/--><br \/>\n<\/script><\/p>\n<p><!-- br--><\/p>\n<p><i>Move mouse over image to see labels.<\/i><\/p>\n<p><!-- br--><!-- br--><\/p>\n<p><b>Factoids<\/b><\/p>\n<p><a href=\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/000550.html\">See first observation.<\/a><\/p>\n<table width=\"470\" border=\"1\" cellspacing=\"0\" cellpadding-left=\"4\">\n<tbody>\n<tr>\n<td><b>Subject<\/b><\/td>\n<td>73P\/Schwassmann-Wachmann 3 &#8211; Components B and C<\/td>\n<\/tr>\n<tr>\n<td><b>Classification<\/b><\/td>\n<td>Comet<\/td>\n<\/tr>\n<tr>\n<td><b>Position* (J2000)<\/b><\/td>\n<td>Hercules and Corona Borealis<br \/>\nComponent C<br \/>\nAPR 30, 2006 05:30 UT &#8211; [RA: 16:37:08 \/ Dec: +31:45:10]<br \/>\nAPR 30, 2006 08:00 UT &#8211; [RA: 16:38:14 \/ Dec: +31:48:42]<br \/>\nComponent B<br \/>\nAPR 30, 2006 06:30 UT &#8211; [RA: 15:58:14 \/ Dec: +34:26:19]<br \/>\nAPR 30, 2006 07:50 UT &#8211; [RA: 15:58:39 \/ Dec: +34:30:13]<\/td>\n<\/tr>\n<tr>\n<td><b>Size<\/b><\/td>\n<td>Component C: Coma: 6&#8242; \/ Tail: 70&#8217;+<br \/>\nComponent B: Coma: 5&#8242; \/ Tail: 60&#8242;<\/td>\n<\/tr>\n<tr>\n<td><b>Brightness*<\/b><\/td>\n<td>Component C: ~8<br \/>\nComponent B: ~8.5<\/td>\n<\/tr>\n<tr>\n<td><b>Date\/Time<\/b><\/td>\n<td>April 29, 2006 &#8211; 10:30 &#8211; April 30, 2006 &#8211; 1:00 AM MST<br \/>\n(April 30, 2006 &#8211; 05:30 &#8211; 08:00 UT)<\/td>\n<\/tr>\n<tr>\n<td><b>Observing Loc.<\/b><\/td>\n<td>Cinder Hills Overlook, Sunset Crater National Monument, AZ<\/td>\n<\/tr>\n<tr>\n<td><b>Instrument<\/b><\/td>\n<td>Orion SVP 6LT Reflector (150 mm dia.\/1200 mm F\/L)<\/td>\n<\/tr>\n<tr>\n<td><b>Eyepieces\/Mag.<\/b><\/td>\n<td>32 mm, and 10 mm Sirius Pl\u00c3\u00b6ssl (37.5X, 120X), and 10 mm Sirius Pl\u00c3\u00b6ssl + 2X Barlow (240X)<\/td>\n<\/tr>\n<tr>\n<td><b>Conditions<\/b><\/td>\n<td>Clear, calm early&#8211;breezy later, 54\u00c2\u00b0F<\/td>\n<\/tr>\n<tr>\n<td><b>Seeing<\/b><\/td>\n<td>3-5\/10 Pickering<\/td>\n<\/tr>\n<tr>\n<td><b>Transparency<\/b><\/td>\n<td>Mag 6.8+ NELM<\/td>\n<\/tr>\n<tr>\n<td><b>*Sources<\/b><\/td>\n<td>Starry Night Pro Plus 5;<a href=\"http:\/\/www.aerith.net\/comet\/catalog\/0073P\/2006.html\" target=\"_blank\" rel=\"noopener\">Aerith.net<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>73P\/Schwassmann-Wachmann 3 20060429<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[10,45,15],"tags":[],"class_list":["post-249","post","type-post","status-publish","format-standard","hentry","category-comet","category-sg-comet","category-sketch-gallery"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":246,"url":"https:\/\/perezmedia.net\/beltofvenus\/2006\/04\/21\/comet_73pschwas_2\/","url_meta":{"origin":249,"position":0},"title":"73P\/Schwassmann-Wachmann 3-B and -C &#8211; April 21, 2006","author":"jperez1690","date":"April 21, 2006","format":false,"excerpt":"73P\/Schwassmann-Wachmann 3 20060421","rel":"","context":"In &quot;Comet&quot;","block_context":{"text":"Comet","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/comet\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":17,"url":"https:\/\/perezmedia.net\/beltofvenus\/2004\/08\/01\/comet_sketches\/","url_meta":{"origin":249,"position":1},"title":"Comet Sketches","author":"jperez1690","date":"August 1, 2004","format":false,"excerpt":"Comet Sketches","rel":"","context":"In &quot;Gallery&quot;","block_context":{"text":"Gallery","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/gallery\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":251,"url":"https:\/\/perezmedia.net\/beltofvenus\/2006\/05\/07\/comet_73pschwas_4\/","url_meta":{"origin":249,"position":2},"title":"73P\/Schwassmann-Wachmann 3-C and Messier 57 &#8211; May 7, 2006","author":"jperez1690","date":"May 7, 2006","format":false,"excerpt":"73P\/Schwassmann-Wachmann 3 20060507","rel":"","context":"In &quot;Comet&quot;","block_context":{"text":"Comet","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/comet\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":244,"url":"https:\/\/perezmedia.net\/beltofvenus\/2006\/04\/19\/comet_73pschwas_1\/","url_meta":{"origin":249,"position":3},"title":"73P\/Schwassmann-Wachmann 3-B and -C &#8211; April 19, 2006","author":"jperez1690","date":"April 19, 2006","format":false,"excerpt":"73P\/Schwassmann-Wachmann 3 20060420","rel":"","context":"In &quot;Comet&quot;","block_context":{"text":"Comet","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/comet\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":243,"url":"https:\/\/perezmedia.net\/beltofvenus\/2006\/04\/15\/comet_73pschwas\/","url_meta":{"origin":249,"position":4},"title":"73P\/Schwassmann-Wachmann 3-B and -C &#8211; April 15, 2006","author":"jperez1690","date":"April 15, 2006","format":false,"excerpt":"73P\/Schwassmann-Wachmann 3 20060415","rel":"","context":"In &quot;Comet&quot;","block_context":{"text":"Comet","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/comet\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":242,"url":"https:\/\/perezmedia.net\/beltofvenus\/2006\/04\/05\/73pschwassmannw\/","url_meta":{"origin":249,"position":5},"title":"73P\/Schwassmann-Wachmann 3 &#8211; April 1, 2006","author":"jperez1690","date":"April 5, 2006","format":false,"excerpt":"73P\/Schwassmann-Wachmann 3 20060401","rel":"","context":"In &quot;Comet&quot;","block_context":{"text":"Comet","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/comet\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/249","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/comments?post=249"}],"version-history":[{"count":1,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/249\/revisions"}],"predecessor-version":[{"id":797,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/249\/revisions\/797"}],"wp:attachment":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/media?parent=249"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/categories?post=249"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/tags?post=249"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}