{"id":525,"date":"2010-02-20T20:45:19","date_gmt":"2010-02-20T20:45:19","guid":{"rendered":"http:\/\/perezmedia.net\/beltofvenus\/2010\/02\/20\/markarians_chai\/"},"modified":"2021-11-28T02:57:31","modified_gmt":"2021-11-28T02:57:31","slug":"markarians_chai","status":"publish","type":"post","link":"https:\/\/perezmedia.net\/beltofvenus\/2010\/02\/20\/markarians_chai\/","title":{"rendered":"Markarian&#8217;s Chain"},"content":{"rendered":"<div class=\"imageblock\"><a href=\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2010\/img2010011502_MarkariansChain01lg.jpg\" onmouseover=\"rollover('img2010011502')\" onmouseout=\"rollout('img2010011502')\"><img decoding=\"async\" src=\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2010\/img2010011502_MarkariansChain01A.jpg\" name=\"img2010011502\" alt=\"Sketch of Markarian's Chain in the Virgo Cluster\"><\/a><br \/>\n<script type=\"text\/javascript\"><br \/>\n<!--\nsetrollover(\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2010\/img2010011502_MarkariansChain01B.jpg\");\n\/\/--><br \/>\n<\/script><\/p>\n<p class=\"caption\">Sketch of Markarian&#8217;s Chain in the Virgo Cluster<\/p>\n<p><i>Move mouse over image to view labels (magnitudes listed in parentheses)<br \/>\nClick for larger version.<\/i><\/p>\n<\/div>\n<p><b>Observation Notes:<\/b><\/p>\n<p>The heart of the Virgo Cluster is a wonderful place to visit from a dark site. Every nudge of the telescope brings another galaxy&#8230;or three or five into the eyepiece&#8230;and it&#8217;s hard to beat the density around Markarian&#8217;s Chain.<\/p>\n<p>In preparation for a tour of the area, I printed a chart and pre-traced 31 of the brightest stars to serve as a multi-field framework on a 9&#8243; x 12&#8243; sketch sheet. This saved a lot of sketching frustration as I panned across the 2.5\u00b0 x 4\u00b0 field. Over the course of the three hour observation, I ended up with 27 galaxies from 8.8 magnitude Messier 87 to 13.1 magnitude IC 3258. Most were quick catches, but a few required some star chart scrutiny to locate.<\/p>\n<p>The list of galaxies observed:<\/p>\n<ul>\n<li>Messier 84 (vMag 9.4)<\/li>\n<li>Messier 86 (vMag 9.0)<\/li>\n<li>Messier 87 (vMag 8.8)<\/li>\n<li>Messier 88 (vMag 9.7)<\/li>\n<li>NGC 4351 (vMag 12.3)<\/li>\n<li>NGC 4377 (vMag 11.9)<\/li>\n<li>NGC 4387 (vMag 12.1)<\/li>\n<li>NGC 4388 (vMag 11.3)<\/li>\n<li>NGC 4402 (vMag 12.2)<\/li>\n<li>NGC 4413 (vMag 12.3)<\/li>\n<li>NGC 4425 (vMag 11.8)<\/li>\n<li>NGC 4431 (vMag 12.9)<\/li>\n<li>NGC 4435 (vMag 10.8)<\/li>\n<li>NGC 4438 (vMag 10.0)<\/li>\n<li>NGC 4440 (vMag 12.1)<\/li>\n<li>NGC 4458 (vMag 12.1)<\/li>\n<li>NGC 4459 (vMag 10.4)<\/li>\n<li>NGC 4461 (vMag 11.1)<\/li>\n<li>NGC 4468 (vMag 13.0)<\/li>\n<li>NGC 4473 (vMag 10.1)<\/li>\n<li>NGC 4474 (vMag 11.8)<\/li>\n<li>NGC 4476 (vMag 12.1)<\/li>\n<li>NGC 4477 (vMag 10.4)<\/li>\n<li>NGC 4478 (vMag 11.3)<\/li>\n<li>NGC 4479 (vMag 12.6)<\/li>\n<li>NGC 4506 (vMag 12.9)<\/li>\n<li>IC 3258 (vMag 13.1)<\/li>\n<\/ul>\n<p>Each of these galaxies is worth its own dedicated observation and sketch, but I wanted this to be more about the swarm than the individuals. Fortunately, the full page size of the sketch allowed some leeway for conveying a little detail in most of the galaxies&#8211;particularly Messier 88 and NGC 4438. As David Moody often advises, don&#8217;t let your eyepiece field stop dictate the extent of your sketch. It&#8217;s good advice.<\/p>\n<table class=\"objectdata\">\n<tbody>\n<tr>\n<td><b>Subject<\/b><\/td>\n<td class=\"subject\">Markarian&#8217;s Chain:<\/td>\n<\/tr>\n<tr>\n<td><b>Classification<\/b><\/td>\n<td>Galaxy Chain<\/td>\n<\/tr>\n<tr>\n<td><b>Position (J2000)*<\/b><\/td>\n<td>Virgo and Coma Berenices<\/td>\n<\/tr>\n<tr>\n<td><b>Date\/Time<\/b><\/td>\n<td>JAN 15, 2010:  02:00 &#8211; 05:00 AM (JAN 15, 2010: 09:00 &#8211; 12:00 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 SkyQuest XT8 Dobsonian (203 mm dia.\/1200 mm F\/L)<\/td>\n<\/tr>\n<tr>\n<td><b>Eyepieces\/Mag.<\/b><\/td>\n<td>32 mm Sirius Pl\u00f6ssl (37.5X); Pentax XW10 (120X); + 2X Barlow (240X)<\/td>\n<\/tr>\n<tr>\n<td><b>Conditions<\/b><\/td>\n<td>Clear, cold, slight breeze<\/td>\n<\/tr>\n<tr>\n<td><b>Seeing<\/b><\/td>\n<td>5\/10 Pickering<\/td>\n<\/tr>\n<tr>\n<td><b>Transparency<\/b><\/td>\n<td>Mag 7.0+ NELM<\/td>\n<\/tr>\n<tr>\n<td><b>*References<\/b><\/td>\n<td>Starry Night Pro Plus 5.x; <a href=\"http:\/\/www.ngcicproject.com\" target=\"_blank\" rel=\"noopener\">NGCIC Project<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>Markarian&#8217;s Chain<\/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":[16,28,19,29,89,103,15],"tags":[],"class_list":["post-525","post","type-post","status-publish","format-standard","hentry","category-deep-sky","category-galaxy","category-sg-deep-sky","category-sg-galaxy","category-sgc-coma-berenices","category-sgc-virgo","category-sketch-gallery"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":469,"url":"https:\/\/perezmedia.net\/beltofvenus\/2009\/05\/01\/messier_49_ngc\/","url_meta":{"origin":525,"position":0},"title":"Messier 49 (NGC 4472)","author":"jperez1690","date":"May 1, 2009","format":false,"excerpt":"M049","rel":"","context":"In &quot;Deep Sky&quot;","block_context":{"text":"Deep Sky","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/deep-sky\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":493,"url":"https:\/\/perezmedia.net\/beltofvenus\/2009\/10\/03\/messier_89_ngc\/","url_meta":{"origin":525,"position":1},"title":"Messier 89 (NGC 4552)","author":"jperez1690","date":"October 3, 2009","format":false,"excerpt":"M089","rel":"","context":"In &quot;Deep Sky&quot;","block_context":{"text":"Deep Sky","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/deep-sky\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":417,"url":"https:\/\/perezmedia.net\/beltofvenus\/2008\/07\/10\/m58\/","url_meta":{"origin":525,"position":2},"title":"Messier 58","author":"jperez1690","date":"July 10, 2008","format":false,"excerpt":"M058","rel":"","context":"In &quot;Deep Sky&quot;","block_context":{"text":"Deep Sky","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/deep-sky\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":487,"url":"https:\/\/perezmedia.net\/beltofvenus\/2009\/09\/21\/m91_ngc_4548\/","url_meta":{"origin":525,"position":3},"title":"Messier 91 (NGC 4548)","author":"jperez1690","date":"September 21, 2009","format":false,"excerpt":"M091","rel":"","context":"In &quot;Deep Sky&quot;","block_context":{"text":"Deep Sky","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/deep-sky\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":468,"url":"https:\/\/perezmedia.net\/beltofvenus\/2009\/04\/28\/messier_61_ngc\/","url_meta":{"origin":525,"position":4},"title":"Messier 61 (NGC 4303)","author":"jperez1690","date":"April 28, 2009","format":false,"excerpt":"M061","rel":"","context":"In &quot;Deep Sky&quot;","block_context":{"text":"Deep Sky","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/deep-sky\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":476,"url":"https:\/\/perezmedia.net\/beltofvenus\/2009\/05\/29\/messier_98_ngc\/","url_meta":{"origin":525,"position":5},"title":"Messier 98 (NGC 4192)","author":"jperez1690","date":"May 29, 2009","format":false,"excerpt":"M098","rel":"","context":"In &quot;Deep Sky&quot;","block_context":{"text":"Deep Sky","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/deep-sky\/"},"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\/525","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=525"}],"version-history":[{"count":1,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/525\/revisions"}],"predecessor-version":[{"id":924,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/525\/revisions\/924"}],"wp:attachment":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/media?parent=525"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/categories?post=525"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/tags?post=525"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}