{"id":318,"date":"2007-02-21T21:27:42","date_gmt":"2007-02-21T21:27:42","guid":{"rendered":"http:\/\/perezmedia.net\/beltofvenus\/2007\/02\/21\/delta_corvi\/"},"modified":"2007-02-21T21:27:42","modified_gmt":"2007-02-21T21:27:42","slug":"delta_corvi","status":"publish","type":"post","link":"https:\/\/perezmedia.net\/beltofvenus\/2007\/02\/21\/delta_corvi\/","title":{"rendered":"Delta Corvi"},"content":{"rendered":"

<\/p>\n

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

Have you ever seen a brownish-gray star? Probably not if it wasn’t plunked down right next to a bright, colorful companion. This pair featured a pale sky blue primary with a secondary that appeared brownish-gray by comparison. According to the Catalog of Stellar Spectral Classifications (Skiff, 2005), this secondary is a K2V star which is an orange star similar to Arcturus. However, because it is rather faint (mag 8.5) in comparison to its bright neighbor (mag 4), that orange came across to me as a much less saturated brown color. PA during my observation appeared to be 210\u00c2\u00b0 with a separation of about 30 arc seconds. WDS values from 1823 are 214\u00c2\u00b0 and 24.1 arc seconds. <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Subject<\/b><\/td>\nDelta Corvi (SHJ 145)<\/b><\/td>\n<\/tr>\n
Classification<\/b><\/td>\nDouble Star<\/td>\n<\/tr>\n
Position (J2000)<\/b><\/td>\n[RA: 12:29:51.9 \/ Dec: -16:30:54]*<\/td>\n<\/tr>\n
Position Angle*<\/b><\/td>\n214\u00c2\u00b0 (1823)<\/td>\n<\/tr>\n
Separation*<\/b><\/td>\n24.1″ (1823)<\/td>\n<\/tr>\n
Magnitudes*<\/b><\/td>\n2.95; 8.47<\/td>\n<\/tr>\n
Spectral Types*<\/b><\/td>\nB9.5V; K2V<\/td>\n<\/tr>\n
Date\/Time<\/b><\/td>\nJAN 18, 2007 – 06:20 AM MST (JAN 18, 2007 – 13:20 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>\n10 mm + 2X Barlow (240X)<\/td>\n<\/tr>\n
Conditions<\/b><\/td>\nClear, calm, 9\u00c2\u00b0 F<\/td>\n<\/tr>\n
Seeing<\/b><\/td>\n3\/10<\/td>\n<\/tr>\n
Transparency<\/b><\/td>\nNELM Mag ~5.8<\/td>\n<\/tr>\n
References<\/b><\/td>\nThe Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996); Catalog of Stellar Spectral Classifications (Skiff, 2005)<\/td>\n<\/tr>\n<\/table>\n

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

Delta Corvi<\/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":[56,57,100,15],"tags":[],"class_list":["post-318","post","type-post","status-publish","format-standard","hentry","category-double-star","category-sg-double-star","category-sgc-corvus","category-sketch-gallery"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":14,"url":"https:\/\/perezmedia.net\/beltofvenus\/2004\/08\/01\/double_star_ske\/","url_meta":{"origin":318,"position":0},"title":"Double Star Sketches","author":"jperez1690","date":"August 1, 2004","format":false,"excerpt":"Double Star Sketches","rel":"","context":"In "General"","block_context":{"text":"General","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/general\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":402,"url":"https:\/\/perezmedia.net\/beltofvenus\/2008\/04\/29\/delta_geminorum_2\/","url_meta":{"origin":318,"position":1},"title":"Delta Geminorum (Struve 1066)","author":"jperez1690","date":"April 29, 2008","format":false,"excerpt":"Delta Geminorum","rel":"","context":"In "Double Star"","block_context":{"text":"Double Star","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/double-star\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":464,"url":"https:\/\/perezmedia.net\/beltofvenus\/2009\/04\/05\/delta_serpentis\/","url_meta":{"origin":318,"position":2},"title":"Delta Serpentis (Struve 1954)","author":"jperez1690","date":"April 5, 2009","format":false,"excerpt":"Delta Serpentis","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":254,"url":"https:\/\/perezmedia.net\/beltofvenus\/2006\/06\/13\/61_cygni\/","url_meta":{"origin":318,"position":3},"title":"61 Cygni (Struve 2758)","author":"jperez1690","date":"June 13, 2006","format":false,"excerpt":"61 Cygni","rel":"","context":"In "Double Star"","block_context":{"text":"Double Star","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/double-star\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":317,"url":"https:\/\/perezmedia.net\/beltofvenus\/2007\/02\/05\/3_centauri\/","url_meta":{"origin":318,"position":4},"title":"3 Centauri","author":"jperez1690","date":"February 5, 2007","format":false,"excerpt":"03 Centauri","rel":"","context":"In "Double Star"","block_context":{"text":"Double Star","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/double-star\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":510,"url":"https:\/\/perezmedia.net\/beltofvenus\/2009\/12\/05\/xi_scorpius_str\/","url_meta":{"origin":318,"position":5},"title":"Xi Scorpii (Struve 1998) and Struve 1999","author":"jperez1690","date":"December 5, 2009","format":false,"excerpt":"Xi Scorpii","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\/318","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=318"}],"version-history":[{"count":0,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/318\/revisions"}],"wp:attachment":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/media?parent=318"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/categories?post=318"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/tags?post=318"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}