{"id":271,"date":"2006-08-28T01:40:00","date_gmt":"2006-08-28T01:40:00","guid":{"rendered":"http:\/\/perezmedia.net\/beltofvenus\/2006\/08\/28\/ngc_663\/"},"modified":"2021-11-27T23:58:04","modified_gmt":"2021-11-27T23:58:04","slug":"ngc_663","status":"publish","type":"post","link":"https:\/\/perezmedia.net\/beltofvenus\/2006\/08\/28\/ngc_663\/","title":{"rendered":"NGC 663"},"content":{"rendered":"

<\/p>\n

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

Riding the rush of just finishing a sketch of M17, I considered looking for the “Owl Cluster”. However, I couldn’t recall the designation, so I went after this beautiful cluster instead. The shape of the cluster seemed to be divided into 4 main clumps arranged north, south, east and west. The north clump was the largest and contained two bright stars at its northern end. The eastern-most of those 2 stars was a close, uneven double itself. About 108 stars are plotted in the sketch, with about 60 residing in the general vicinity of the cluster.<\/p>\n

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

NGC 663 is an open cluster that was discovered by Friedrich Wilhelm Herschel in 1787. According to Catalogue of open cluster parameters from UBV-data. (Loktin+, 1994)<\/i>, the cluster is 2,284 parsecs distant (7,446 light years). This agrees well with Star Clusters and Associations, Selected Data (Alter+ 1970)<\/i> which lists 2,200 parsecs (7,172 ly). The cluster is also catalogued as Cr 20, Mel 11, OCL 333, Lund 55, H VI-31, GC 392.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Subject<\/b><\/td>\nNGC 663<\/td>\n<\/tr>\n
Classification<\/b><\/td>\nOpen Cluster (II 3 r)<\/td>\n<\/tr>\n
Position*<\/b><\/td>\nCassiopeia [RA: 01:46:16 \/ Dec: +61:13:06]<\/td>\n<\/tr>\n
Size*<\/b><\/td>\n16′<\/td>\n<\/tr>\n
Brightness*<\/b><\/td>\n7.1 vMag.<\/td>\n<\/tr>\n
Date\/Time<\/b><\/td>\nAugust 28, 2006 – 01:40 AM
\n(August 28, 2006 – 08:40 UT)<\/td>\n<\/tr>\n
Observing Loc.<\/b><\/td>\nAnderson Mesa, 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>\n10 mm (120X)<\/td>\n<\/tr>\n
Conditions<\/b><\/td>\nClear, Calm, 50\u00c2\u00b0F<\/td>\n<\/tr>\n
Seeing<\/b><\/td>\n5\/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 0663<\/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":[16,24,19,25,22,65,15],"tags":[],"class_list":["post-271","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-cassiopeia","category-sketch-gallery"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":293,"url":"https:\/\/perezmedia.net\/beltofvenus\/2006\/10\/27\/ngc_654\/","url_meta":{"origin":271,"position":0},"title":"NGC 654","author":"jperez1690","date":"October 27, 2006","format":false,"excerpt":"NGC 0654","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":271,"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":349,"url":"https:\/\/perezmedia.net\/beltofvenus\/2007\/08\/15\/ngc_6866\/","url_meta":{"origin":271,"position":2},"title":"NGC 6866","author":"jperez1690","date":"August 15, 2007","format":false,"excerpt":"NGC 6866","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":294,"url":"https:\/\/perezmedia.net\/beltofvenus\/2006\/10\/27\/ngc_1647\/","url_meta":{"origin":271,"position":3},"title":"NGC 1647","author":"jperez1690","date":"October 27, 2006","format":false,"excerpt":"NGC 1647","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":271,"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":359,"url":"https:\/\/perezmedia.net\/beltofvenus\/2007\/09\/15\/ngc_7062\/","url_meta":{"origin":271,"position":5},"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":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/271","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=271"}],"version-history":[{"count":2,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/271\/revisions"}],"predecessor-version":[{"id":814,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/271\/revisions\/814"}],"wp:attachment":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/media?parent=271"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/categories?post=271"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/tags?post=271"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}