{"id":303,"date":"2006-12-02T21:58:20","date_gmt":"2006-12-02T21:58:20","guid":{"rendered":"http:\/\/perezmedia.net\/beltofvenus\/2006\/12\/02\/alpha_leonis_re\/"},"modified":"2006-12-02T21:58:20","modified_gmt":"2006-12-02T21:58:20","slug":"alpha_leonis_re","status":"publish","type":"post","link":"https:\/\/perezmedia.net\/beltofvenus\/2006\/12\/02\/alpha_leonis_re\/","title":{"rendered":"Alpha Leonis (Regulus \/ Struve 6)"},"content":{"rendered":"

<\/p>\n

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

Regulus makes for a wide double with a brilliant blue-white primary that gave a reddish purple appearance to its G-type secondary star. Separation appeared to be 1\/3 of the field of view, or about 240 arc seconds. The actual value is 178 arc seconds (or about 1\/4 of the field). So I managed to mess that estimate up a bit. My PA estimate of 315 degrees was in pretty good shape compared to the actual value of 307 degrees.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Subject<\/b><\/td>\nAlpha Leonis (Regulus \/ STF 6)<\/td>\n<\/tr>\n
Classification<\/b><\/td>\nDouble Star<\/td>\n<\/tr>\n
Position (J2000)<\/b><\/td>\n[RA: 10:08:22.1 \/ Dec: +11:58:01]*<\/td>\n<\/tr>\n
Position Angle*<\/b><\/td>\n307\u00c2\u00b0 (1836)<\/td>\n<\/tr>\n
Separation*<\/b><\/td>\n177.6″ (1960)<\/td>\n<\/tr>\n
Magnitudes*<\/b><\/td>\nA = 1.35; B = 8.12<\/td>\n<\/tr>\n
Spectral Types*<\/b><\/td>\nA = B7V; B = G<\/td>\n<\/tr>\n
Date\/Time<\/b><\/td>\nOCT 22, 2006 – 04:10 AM MST (OCT 22, 2006 – 11:10 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>\n10 mm + 2X Barlow (240X)<\/td>\n<\/tr>\n
Conditions<\/b><\/td>\nClear, calm<\/p>\n
Seeing<\/b><\/td>\n5\/10<\/td>\n<\/tr>\n
Transparency<\/b><\/td>\nNELM Mag 6.8+<\/td>\n<\/tr>\n
References<\/b><\/td>\nThe Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996), Visual Double Stars in Hipparcos (Dommanget+, 2000) via VizieR<\/a><\/td>\n<\/tr>\n<\/table>\n

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

Alpha Leonis<\/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":[56,57,53,15],"tags":[],"class_list":["post-303","post","type-post","status-publish","format-standard","hentry","category-double-star","category-sg-double-star","category-sgc-leo","category-sketch-gallery"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":305,"url":"https:\/\/perezmedia.net\/beltofvenus\/2006\/12\/02\/54_leonis_struv\/","url_meta":{"origin":303,"position":0},"title":"54 Leonis (Struve 1487)","author":"jperez1690","date":"December 2, 2006","format":false,"excerpt":"54 Leonis","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":579,"url":"https:\/\/perezmedia.net\/beltofvenus\/2011\/07\/30\/iota_leonis_str\/","url_meta":{"origin":303,"position":1},"title":"Iota Leonis (Struve 1536)","author":"jperez1690","date":"July 30, 2011","format":false,"excerpt":"Iota LEO","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":14,"url":"https:\/\/perezmedia.net\/beltofvenus\/2004\/08\/01\/double_star_ske\/","url_meta":{"origin":303,"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":304,"url":"https:\/\/perezmedia.net\/beltofvenus\/2006\/12\/02\/gamma_leonis_al\/","url_meta":{"origin":303,"position":3},"title":"Gamma Leonis (Algieba \/ Struve 1424)","author":"jperez1690","date":"December 2, 2006","format":false,"excerpt":"Gamma Leonis","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":572,"url":"https:\/\/perezmedia.net\/beltofvenus\/2011\/07\/28\/tau_and_83_leon\/","url_meta":{"origin":303,"position":4},"title":"Tau and 83 Leonis (Struve-A 19 \/ Struve )","author":"jperez1690","date":"July 28, 2011","format":false,"excerpt":"Tau LEO \/ 83 LEO","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":524,"url":"https:\/\/perezmedia.net\/beltofvenus\/2010\/02\/19\/drawn_to_the_un_11\/","url_meta":{"origin":303,"position":5},"title":"Drawn to the UniverseMAR 2010 – Tau and 83 Leonis","author":"jperez1690","date":"February 19, 2010","format":false,"excerpt":"Tau and 83 Leonis make a stunning and colorful low power double-double and are the subject of March 2010 Drawn to the Universe Column in Astronomy Now. Subject:Tau and 83 Leonis Issue:March 2010 Astronomy Now Basic Media:Graphite on Paper and Digital Editing Featured Technique:Using image editing software to create digital\u2026","rel":"","context":"In "Article"","block_context":{"text":"Article","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/article\/"},"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\/303","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=303"}],"version-history":[{"count":0,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/303\/revisions"}],"wp:attachment":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/media?parent=303"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/categories?post=303"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/tags?post=303"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}