{"id":44,"date":"2004-10-14T20:05:00","date_gmt":"2004-10-14T20:05:00","guid":{"rendered":"http:\/\/perezmedia.net\/beltofvenus\/2004\/10\/14\/m28\/"},"modified":"2021-11-27T18:56:01","modified_gmt":"2021-11-27T18:56:01","slug":"m28","status":"publish","type":"post","link":"https:\/\/perezmedia.net\/beltofvenus\/2004\/10\/14\/m28\/","title":{"rendered":"Messier 28"},"content":{"rendered":"

<\/p>\n

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

At 37X, this globular cluster is small, but still easily visible. I didn’t see any granularity at this magnification. The nucleus was circular and tight, but not stellar. At 120X, granularity was still hard to come by. About 7 or 8 stars were blinking in and out across the surface. The fall off in brightness seemed softest to the NE.<\/p>\n

Factoids:<\/b><\/p>\n

At a distance of 18 to 19,000 light years, M28 has a diameter of 60 light years. It was the second globular cluster that was discovered to contain a millisecond pulsar–this pulsar spins around its axis once every 11 milliseconds. M28 was discovered by Charles Messier in 1764.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Subject<\/b><\/td>\nM28\/NGC 6626<\/td>\n<\/tr>\n
Classification<\/b><\/td>\nGlobular Cluster<\/td>\n<\/tr>\n
Position<\/b><\/td>\nSagittarius [RA: 18:24.5 \/ Dec: -24:52]*<\/td>\n<\/tr>\n
Size*<\/b><\/td>\n11.2′<\/td>\n<\/tr>\n
Brightness*<\/b><\/td>\n6.8<\/td>\n<\/tr>\n
Date\/Time<\/b><\/td>\n10\/14\/04 – 8:05 PM<\/td>\n<\/tr>\n
Observing Loc.<\/b><\/td>\nFlagstaff, AZ – Home<\/td>\n<\/tr>\n
Instrument<\/b><\/td>\nOrion SVP 6LT Reflector (150 mm dia.\/1200 mm F\/L)<\/td>\n<\/tr>\n
Eyepieces\/Mag.<\/b><\/td>\n32 mm (37X), 10 mm (120X)<\/td>\n<\/tr>\n
Seeing<\/b><\/td>\n3\/10<\/td>\n<\/tr>\n
Transparency<\/b><\/td>\nMag 5.8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

* Based on published data.<\/p>\n","protected":false},"excerpt":{"rendered":"

M028<\/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":[16,17,18,19,20,21,22,23,15],"tags":[],"class_list":["post-44","post","type-post","status-publish","format-standard","hentry","category-deep-sky","category-globular-cluster","category-messier","category-sg-deep-sky","category-sg-globular-cluster","category-sg-messier","category-sg-star-cluster","category-sgc-sagittarius","category-sketch-gallery"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":45,"url":"https:\/\/perezmedia.net\/beltofvenus\/2004\/10\/14\/m55\/","url_meta":{"origin":44,"position":0},"title":"Messier 55","author":"jperez1690","date":"October 14, 2004","format":false,"excerpt":"M055","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":47,"url":"https:\/\/perezmedia.net\/beltofvenus\/2004\/10\/14\/m2\/","url_meta":{"origin":44,"position":1},"title":"Messier 2","author":"jperez1690","date":"October 14, 2004","format":false,"excerpt":"M002","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":41,"url":"https:\/\/perezmedia.net\/beltofvenus\/2004\/10\/09\/m15\/","url_meta":{"origin":44,"position":2},"title":"Messier 15","author":"jperez1690","date":"October 9, 2004","format":false,"excerpt":"M015","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":49,"url":"https:\/\/perezmedia.net\/beltofvenus\/2004\/10\/15\/m80\/","url_meta":{"origin":44,"position":3},"title":"Messier 80","author":"jperez1690","date":"October 15, 2004","format":false,"excerpt":"M080","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":195,"url":"https:\/\/perezmedia.net\/beltofvenus\/2005\/10\/02\/m9\/","url_meta":{"origin":44,"position":4},"title":"Messier 9","author":"jperez1690","date":"October 2, 2005","format":false,"excerpt":"M009","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":194,"url":"https:\/\/perezmedia.net\/beltofvenus\/2005\/10\/02\/m19\/","url_meta":{"origin":44,"position":5},"title":"Messier 19","author":"jperez1690","date":"October 2, 2005","format":false,"excerpt":"M019","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\/44","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=44"}],"version-history":[{"count":1,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/44\/revisions"}],"predecessor-version":[{"id":679,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/44\/revisions\/679"}],"wp:attachment":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/media?parent=44"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/categories?post=44"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/tags?post=44"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}