{"id":412,"date":"2008-06-27T00:59:08","date_gmt":"2008-06-27T00:59:08","guid":{"rendered":"http:\/\/perezmedia.net\/beltofvenus\/2008\/06\/27\/m104\/"},"modified":"2021-11-28T00:54:23","modified_gmt":"2021-11-28T00:54:23","slug":"m104","status":"publish","type":"post","link":"https:\/\/perezmedia.net\/beltofvenus\/2008\/06\/27\/m104\/","title":{"rendered":"Messier 104"},"content":{"rendered":"

<\/a><\/p>\n

<\/a>
\nClick images for larger versions.<\/i><\/p>\n

Observation Notes:<\/b><\/p>\n

It’s about time I sketched this beautiful, bright galaxy. Once again, I observed from home, which is not the best place to see structure in galaxies–but the Sombrero was very cooperative. It was conveniently aligned at a PA of 90 degrees. The visible extent appeared to be about 1 x 6 arc minutes. At 120X, the sharp drop in brightness along the south edge was picked up again by a subtle, soft brightening. I would not say the dark lane was apparent at this scale, and under these conditions. At 240X however, the dark lane dividing the two regions was visible. The apparent width of this southern section was about 3 arc minutes.<\/p>\n

The heart of the galaxy was punctuated by a stellar core. At 120X, this core appered to be at the edge of the dark lane boundary. At 240X, it was definitely separated from the dark lane. The dark lane appeared to bow very slightly around the stellar core.<\/p>\n

Object Information:<\/b><\/p>\n

M104, the Sombrero Galaxy, lies about 50 million light years away and is a primary member of the M104 group of galaxies. It is an Sa\/Sb type galaxy, seen from about 6 degrees above its equatorial plane. It sports a pronounced dust lane as well as a large population of globular clusters. In 1912, it was found to have a large redshift of 1000 km\/sec by V. Slipher at Lowell Observatory. M104 was discovered by Pierre M\u00e9chain in 1781.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Subject<\/b><\/td>\nM104 (NGC 4594)<\/td>\n<\/tr>\n
Classification<\/b><\/td>\nSpiral Galaxy (Sa-Sb)<\/td>\n<\/tr>\n
Position*<\/b><\/td>\nVirgo [RA: 12:40:00 \/ Dec: -11:37:00]<\/td>\n<\/tr>\n
Size*<\/b><\/td>\n9′ x 4′<\/td>\n<\/tr>\n
Brightness*<\/b><\/td>\n8.0 vMag<\/td>\n<\/tr>\n
Date\/Time<\/b><\/td>\nJune 21, 2008 – 9:30 PM MST (June 22, 2008 – 04:30 UT)<\/td>\n<\/tr>\n
Observing Loc.<\/b><\/td>\nFlagstaff, AZ – Home<\/td>\n<\/tr>\n
Instrument<\/b><\/td>\nOrion SkyQuest XT8 (203 mm dia.\/1200 mm F\/L)<\/td>\n<\/tr>\n
Eyepieces\/Mag.<\/b><\/td>\n10 mm Sirius Pl\u00f6ssl (120X) \/ 10 mm Sirius Pl\u00f6ssl + 2X Barlow (240X)<\/td>\n<\/tr>\n
Conditions<\/b><\/td>\nClear, breezy<\/td>\n<\/tr>\n
Seeing<\/b><\/td>\n5\/10 Pickering<\/td>\n<\/tr>\n
Transparency<\/b><\/td>\n~ Mag 5.5 NELM<\/td>\n<\/tr>\n
*References<\/b><\/td>\nSEDS<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

M104<\/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":[16,28,18,19,29,21,103,15],"tags":[],"class_list":["post-412","post","type-post","status-publish","format-standard","hentry","category-deep-sky","category-galaxy","category-messier","category-sg-deep-sky","category-sg-galaxy","category-sg-messier","category-sgc-virgo","category-sketch-gallery"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":493,"url":"https:\/\/perezmedia.net\/beltofvenus\/2009\/10\/03\/messier_89_ngc\/","url_meta":{"origin":412,"position":0},"title":"Messier 89 (NGC 4552)","author":"jperez1690","date":"October 3, 2009","format":false,"excerpt":"M089","rel":"","context":"In "Deep Sky"","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":412,"position":1},"title":"Messier 91 (NGC 4548)","author":"jperez1690","date":"September 21, 2009","format":false,"excerpt":"M091","rel":"","context":"In "Deep Sky"","block_context":{"text":"Deep Sky","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/deep-sky\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":469,"url":"https:\/\/perezmedia.net\/beltofvenus\/2009\/05\/01\/messier_49_ngc\/","url_meta":{"origin":412,"position":2},"title":"Messier 49 (NGC 4472)","author":"jperez1690","date":"May 1, 2009","format":false,"excerpt":"M049","rel":"","context":"In "Deep Sky"","block_context":{"text":"Deep Sky","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/deep-sky\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":39,"url":"https:\/\/perezmedia.net\/beltofvenus\/2004\/10\/04\/m110_satellite\/","url_meta":{"origin":412,"position":3},"title":"Messier 110 – Satellite of the Andromeda Galaxy","author":"jperez1690","date":"October 4, 2004","format":false,"excerpt":"M110","rel":"","context":"In "Deep Sky"","block_context":{"text":"Deep Sky","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/deep-sky\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":416,"url":"https:\/\/perezmedia.net\/beltofvenus\/2008\/07\/09\/m59\/","url_meta":{"origin":412,"position":4},"title":"Messier 59","author":"jperez1690","date":"July 9, 2008","format":false,"excerpt":"M059","rel":"","context":"In "Deep Sky"","block_context":{"text":"Deep Sky","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/deep-sky\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":236,"url":"https:\/\/perezmedia.net\/beltofvenus\/2006\/02\/25\/m109\/","url_meta":{"origin":412,"position":5},"title":"Messier 109","author":"jperez1690","date":"February 25, 2006","format":false,"excerpt":"M109","rel":"","context":"In "Deep Sky"","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\/412","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=412"}],"version-history":[{"count":1,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/412\/revisions"}],"predecessor-version":[{"id":871,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/412\/revisions\/871"}],"wp:attachment":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/media?parent=412"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/categories?post=412"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/tags?post=412"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}