{"id":317,"date":"2007-02-05T00:01:00","date_gmt":"2007-02-05T00:01:00","guid":{"rendered":"http:\/\/perezmedia.net\/beltofvenus\/2007\/02\/05\/3_centauri\/"},"modified":"2007-02-05T00:01:00","modified_gmt":"2007-02-05T00:01:00","slug":"3_centauri","status":"publish","type":"post","link":"https:\/\/perezmedia.net\/beltofvenus\/2007\/02\/05\/3_centauri\/","title":{"rendered":"3 Centauri"},"content":{"rendered":"

<\/p>\n

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

This bluish pair gave the appearance of sky blue for the primary and blue-gray for the secondary. My estimate for PA was 115°. Seeing was very poor in the area, and made the diffraction rings impossible to see clearly. My best guess was 5-10 arc seconds. Actual values are 106° and 7.9 arc seconds from a 1986 WDS measurement.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Subject<\/b><\/td>\n3 Centauri (H 101)<\/b><\/td>\n<\/tr>\n
Classification<\/b><\/td>\nDouble Star<\/td>\n<\/tr>\n
Position (J2000)<\/b><\/td>\n[RA: 13:51:49.5 \/ Dec: -32:59:38]*<\/td>\n<\/tr>\n
Position Angle*<\/b><\/td>\n106° (1986)<\/td>\n<\/tr>\n
Separation*<\/b><\/td>\n7.9″ (1986)<\/td>\n<\/tr>\n
Magnitudes*<\/b><\/td>\n4.56; 6.06<\/td>\n<\/tr>\n
Spectral Types*<\/b><\/td>\nB5III; B8V<\/td>\n<\/tr>\n
Date\/Time<\/b><\/td>\nJAN 18, 2007 – 06:05 AM MST (JAN 18, 2007 – 13:05 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, 7\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)<\/td>\n<\/tr>\n<\/table>\n

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

03 Centauri<\/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":[56,57,99,15],"tags":[],"class_list":["post-317","post","type-post","status-publish","format-standard","hentry","category-double-star","category-sg-double-star","category-sgc-centaurus","category-sketch-gallery"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":339,"url":"https:\/\/perezmedia.net\/beltofvenus\/2007\/07\/14\/4_centauri_hers\/","url_meta":{"origin":317,"position":0},"title":"4 Centauri (Herschel 51)","author":"jperez1690","date":"July 14, 2007","format":false,"excerpt":"04 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":410,"url":"https:\/\/perezmedia.net\/beltofvenus\/2008\/06\/22\/omega_centauri\/","url_meta":{"origin":317,"position":1},"title":"NGC 5139 – Omega Centauri","author":"jperez1690","date":"June 22, 2008","format":false,"excerpt":"NGC 5139 - Omega Centauri","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":14,"url":"https:\/\/perezmedia.net\/beltofvenus\/2004\/08\/01\/double_star_ske\/","url_meta":{"origin":317,"position":2},"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":430,"url":"https:\/\/perezmedia.net\/beltofvenus\/2004\/08\/01\/binocular_sketc\/","url_meta":{"origin":317,"position":3},"title":"Binocular Sketches","author":"jperez1690","date":"August 1, 2004","format":false,"excerpt":"Binocular Sketches","rel":"","context":"In "Gallery"","block_context":{"text":"Gallery","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/gallery\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":420,"url":"https:\/\/perezmedia.net\/beltofvenus\/2008\/07\/20\/struve_2306\/","url_meta":{"origin":317,"position":4},"title":"Struve 2306","author":"jperez1690","date":"July 20, 2008","format":false,"excerpt":"Struve 2306","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":300,"url":"https:\/\/perezmedia.net\/beltofvenus\/2006\/11\/27\/iota_cancri_str\/","url_meta":{"origin":317,"position":5},"title":"Iota Cancri (Struve 1268)","author":"jperez1690","date":"November 27, 2006","format":false,"excerpt":"Iota Cancri","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":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/317","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=317"}],"version-history":[{"count":0,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/317\/revisions"}],"wp:attachment":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/media?parent=317"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/categories?post=317"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/tags?post=317"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}