{"id":294,"date":"2006-10-27T02:00:56","date_gmt":"2006-10-27T02:00:56","guid":{"rendered":"http:\/\/perezmedia.net\/beltofvenus\/2006\/10\/27\/ngc_1647\/"},"modified":"2021-11-28T00:03:58","modified_gmt":"2021-11-28T00:03:58","slug":"ngc_1647","status":"publish","type":"post","link":"https:\/\/perezmedia.net\/beltofvenus\/2006\/10\/27\/ngc_1647\/","title":{"rendered":"NGC 1647"},"content":{"rendered":"

<\/p>\n

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

I first noticed NGC 1647 between the horns of Taurus in a wide-field astro photo<\/a> I shot of the area in November 2005. I’ve been meaning to observe and sketch it since then. At 37.5X magnification, the cluster appeared large, bright and sparse. Two colorful yellow and yellow-orange stars rested at the south side of the cluster. I noted several doubles within. The diameter of the main body of the cluster appeared to be about 30 arc minutes.<\/p>\n

Several bright Orionids graced the sky and caught my attention during the observation and sketch. Dave Saunders and I noted one meteor trail that lasted over 30 seconds. Nice!<\/p>\n

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

NGC 654 was discovered by Friedrich Wilhelm Herschel in 1784. According to Catalogue of open cluster parameters from UBV-data. (Loktin+, 1994)<\/i>, the cluster is about 509 parsecs distant (1,660 light years). Star Clusters and Associations, Selected Data (Alter+ 1970)<\/i> lists a distance of 550 parsecs (1,790 ly). The cluster is also catalogued as Cr 54, Mel 26, OCL 457, Lund 139, H VIII-8, GC 896.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Subject<\/b><\/td>\nNGC 1647<\/td>\n<\/tr>\n
Classification<\/b><\/td>\nOpen Cluster (II 2 r)<\/td>\n<\/tr>\n
Position*<\/b><\/td>\nTaurus [RA: 04:45:55.6 \/ Dec: +19:06:42]<\/td>\n<\/tr>\n
Size*<\/b><\/td>\n45′<\/td>\n<\/tr>\n
Brightness*<\/b><\/td>\n6.4 vMag.<\/td>\n<\/tr>\n
Date\/Time<\/b><\/td>\nOctober 21, 2006 – 11:05 PM
\n(October 22, 2006 – 06:05 UT)<\/td>\n<\/tr>\n
Observing Loc.<\/b><\/td>\nCinder Hills Overlook, Sunset Crater National Monument, AZ<\/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 (37.5X)<\/td>\n<\/tr>\n
Conditions<\/b><\/td>\nClear, Calm<\/td>\n<\/tr>\n
Seeing<\/b><\/td>\n6\/10<\/td>\n<\/tr>\n
Transparency<\/b><\/td>\nMag 6.8+ NELM<\/td>\n<\/tr>\n
*Sources<\/b><\/td>\nNGC\/IC Project<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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

NGC 1647<\/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":[16,24,19,25,22,48,15],"tags":[],"class_list":["post-294","post","type-post","status-publish","format-standard","hentry","category-deep-sky","category-open-cluster","category-sg-deep-sky","category-sg-open-cluster","category-sg-star-cluster","category-sgc-taurus","category-sketch-gallery"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":359,"url":"https:\/\/perezmedia.net\/beltofvenus\/2007\/09\/15\/ngc_7062\/","url_meta":{"origin":294,"position":0},"title":"NGC 7062","author":"jperez1690","date":"September 15, 2007","format":false,"excerpt":"NGC 7062","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":368,"url":"https:\/\/perezmedia.net\/beltofvenus\/2007\/10\/18\/ngc_457_and_ngc\/","url_meta":{"origin":294,"position":1},"title":"NGC 457 and NGC 436","author":"jperez1690","date":"October 18, 2007","format":false,"excerpt":"NGC 457 and NGC 436","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":294,"position":2},"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":234,"url":"https:\/\/perezmedia.net\/beltofvenus\/2010\/01\/16\/ngc_2244_and_sh\/","url_meta":{"origin":294,"position":3},"title":"NGC 2244 and Sh 2-275 – The Rosette Nebula","author":"jperez1690","date":"January 16, 2010","format":false,"excerpt":"NGC 2244 and Sh 2-275","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":556,"url":"https:\/\/perezmedia.net\/beltofvenus\/2010\/12\/17\/ngc_559\/","url_meta":{"origin":294,"position":4},"title":"NGC 559","author":"jperez1690","date":"December 17, 2010","format":false,"excerpt":"NGC 0559","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":271,"url":"https:\/\/perezmedia.net\/beltofvenus\/2006\/08\/28\/ngc_663\/","url_meta":{"origin":294,"position":5},"title":"NGC 663","author":"jperez1690","date":"August 28, 2006","format":false,"excerpt":"NGC 0663","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\/294","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=294"}],"version-history":[{"count":1,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/294\/revisions"}],"predecessor-version":[{"id":820,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/294\/revisions\/820"}],"wp:attachment":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/media?parent=294"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/categories?post=294"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/tags?post=294"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}