{"id":97,"date":"2005-02-03T21:30:00","date_gmt":"2005-02-03T21:30:00","guid":{"rendered":"http:\/\/perezmedia.net\/beltofvenus\/2005\/02\/03\/m37\/"},"modified":"2021-11-27T19:48:46","modified_gmt":"2021-11-27T19:48:46","slug":"m37","status":"publish","type":"post","link":"https:\/\/perezmedia.net\/beltofvenus\/2005\/02\/03\/m37\/","title":{"rendered":"Messier 37"},"content":{"rendered":"


\n<\/p>\n

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

Hoo-boy! This is a dense cluster. It had a roughly triangular shape, trisected by dark lanes focusing on a bright yellow-orange central star. It was very stunning to look at. I was really struggling with how to sketch it. Plotting star positions wasn’t giving the feel for granularity in the triangular area. In the end, I dashed in boundaries of the grainy regions, and then lightly shaded and stippled these. It looks like a little too blunt of an instrument, but it’s better than no indication at all. The south end of the view was punctuated by a bright yellow star. Going to a 120X view still showed some localized background granularity, but I didn’t indicate this in the close-up sketch.<\/p>\n

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

M37 is the brightest and richest of the three Auriga Messier clusters. It contains 150 stars brighter than mag 12.5, with a possible total of 500 stars altogether. Its age is estimated at 300 million years, and contains at least a dozen red giants. Distance estimates range from 3600 to 4700 light years, with a diameter of 20 to 25 light years. M37 was discovered by Giovanni Batista Hodierna before 1654, and independently re-recorded by Charles Messier in 1764.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Subject<\/b><\/td>\nM37 (NGC 2099)<\/td>\n<\/tr>\n
Classification<\/b><\/td>\nOpen Cluster<\/td>\n<\/tr>\n
Position*<\/b><\/td>\nAuriga [RA: 05:52.4 \/ Dec: +32:33]<\/td>\n<\/tr>\n
Size*<\/b><\/td>\n24′<\/td>\n<\/tr>\n
Brightness*<\/b><\/td>\n6.2<\/td>\n<\/tr>\n
Date\/Time<\/b><\/td>\nFebruary 3, 2005 – 9:30 PM
\n(February 4, 2005 – 04:30 UT)<\/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
Conditions<\/b><\/td>\nClear, 34\u00b0F<\/td>\n<\/tr>\n
Seeing<\/b><\/td>\n4\/10<\/td>\n<\/tr>\n
Transparency<\/b><\/td>\nMag 5.2<\/td>\n<\/tr>\n
Sources<\/b><\/td>\nSEDS<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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

M037<\/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":[16,18,24,19,21,25,22,46,15],"tags":[],"class_list":["post-97","post","type-post","status-publish","format-standard","hentry","category-deep-sky","category-messier","category-open-cluster","category-sg-deep-sky","category-sg-messier","category-sg-open-cluster","category-sg-star-cluster","category-sgc-auriga","category-sketch-gallery"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":103,"url":"https:\/\/perezmedia.net\/beltofvenus\/2005\/02\/04\/m93\/","url_meta":{"origin":97,"position":0},"title":"Messier 93","author":"jperez1690","date":"February 4, 2005","format":false,"excerpt":"M093","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":100,"url":"https:\/\/perezmedia.net\/beltofvenus\/2005\/02\/04\/m44_the_beehive\/","url_meta":{"origin":97,"position":1},"title":"Messier 44 – The Beehive Cluster","author":"jperez1690","date":"February 4, 2005","format":false,"excerpt":"M044","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":104,"url":"https:\/\/perezmedia.net\/beltofvenus\/2005\/02\/04\/m47_and_ngc_242\/","url_meta":{"origin":97,"position":2},"title":"Messier 47 and NGC 2423","author":"jperez1690","date":"February 4, 2005","format":false,"excerpt":"M047","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":98,"url":"https:\/\/perezmedia.net\/beltofvenus\/2005\/02\/03\/m35_and_ngc_215\/","url_meta":{"origin":97,"position":3},"title":"Messier 35 and NGC 2158","author":"jperez1690","date":"February 3, 2005","format":false,"excerpt":"M035","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":115,"url":"https:\/\/perezmedia.net\/beltofvenus\/2005\/03\/11\/m48\/","url_meta":{"origin":97,"position":4},"title":"Messier 48","author":"jperez1690","date":"March 11, 2005","format":false,"excerpt":"M048","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":48,"url":"https:\/\/perezmedia.net\/beltofvenus\/2004\/10\/14\/m39\/","url_meta":{"origin":97,"position":5},"title":"Messier 39","author":"jperez1690","date":"October 14, 2004","format":false,"excerpt":"M039","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\/97","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=97"}],"version-history":[{"count":1,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/97\/revisions"}],"predecessor-version":[{"id":697,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/97\/revisions\/697"}],"wp:attachment":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/media?parent=97"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/categories?post=97"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/tags?post=97"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}