{"id":82,"date":"2005-01-16T22:05:00","date_gmt":"2005-01-16T22:05:00","guid":{"rendered":"http:\/\/perezmedia.net\/beltofvenus\/2005\/01\/16\/doublemultiple_2\/"},"modified":"2005-01-16T22:05:00","modified_gmt":"2005-01-16T22:05:00","slug":"doublemultiple_2","status":"publish","type":"post","link":"https:\/\/perezmedia.net\/beltofvenus\/2005\/01\/16\/doublemultiple_2\/","title":{"rendered":"Zeta Orionis (Struve 774)"},"content":{"rendered":"


\nOctober 12, 2006: To help provide a consistent style for my double star sketches, the above sketch is a digital update to the original sketch.<\/p>\n

<\/p>\n

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

My first impression was of a wide double with a blue southern component that was much brighter than its southern counterpart. I had to use averted vision to see the northern star–high clouds were getting very problematic. After further research later, it turns out I missed a third bright component that is separated by 2.4″ from the brightest star. So I should really be seeing a triple star. I want to look at this again to see if I can pick out this closer star.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Subject<\/b><\/td>\nZeta Orionis (Alnitak \/ 50 ORI \/ STF 774)<\/td>\n<\/tr>\n
Classification<\/b><\/td>\nMultiple Star<\/td>\n<\/tr>\n
Position<\/b><\/td>\nOrion [RA: 05:40:45.5 \/ Dec: -01:56:33]*<\/td>\n<\/tr>\n
Separation*<\/b><\/td>\n2.4″, 58″<\/td>\n<\/tr>\n
Magnitudes*<\/b><\/td>\n1.9 \/ 4.0 \/ 9.9<\/td>\n<\/tr>\n
Position Angle*<\/b><\/td>\n162\u00c2\u00b0 \/ 10\u00c2\u00b0<\/td>\n<\/tr>\n
Date\/Time<\/b><\/td>\n01\/16\/05 – 10:05 PM<\/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>\nPatchy high clouds, cool (34\u00c2\u00b0F), 1st quarter Moon<\/p>\n
Seeing<\/b><\/td>\n5\/10<\/td>\n<\/tr>\n
Transparency<\/b><\/td>\nMag 4.0 NELM<\/td>\n<\/tr>\n<\/table>\n

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

Zeta Orionis<\/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":[56,57,52,15],"tags":[],"class_list":["post-82","post","type-post","status-publish","format-standard","hentry","category-double-star","category-sg-double-star","category-sgc-orion","category-sketch-gallery"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":81,"url":"https:\/\/perezmedia.net\/beltofvenus\/2005\/01\/16\/doublemultiple_1\/","url_meta":{"origin":82,"position":0},"title":"Delta Orionis (Struve 14)","author":"jperez1690","date":"January 16, 2005","format":false,"excerpt":"Delta Orionis","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":82,"position":1},"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":83,"url":"https:\/\/perezmedia.net\/beltofvenus\/2005\/01\/16\/doublemultiple_3\/","url_meta":{"origin":82,"position":2},"title":"Sigma Orionis (Struve 762)","author":"jperez1690","date":"January 16, 2005","format":false,"excerpt":"Sigma Orionis","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":80,"url":"https:\/\/perezmedia.net\/beltofvenus\/2005\/01\/16\/doublemultiple\/","url_meta":{"origin":82,"position":3},"title":"Lambda Orionis (Struve 738)","author":"jperez1690","date":"January 16, 2005","format":false,"excerpt":"Lambda Orionis","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":87,"url":"https:\/\/perezmedia.net\/beltofvenus\/2005\/01\/17\/doublemultiple_7\/","url_meta":{"origin":82,"position":4},"title":"Iota Orionis (Struve 752)","author":"jperez1690","date":"January 17, 2005","format":false,"excerpt":"Iota Orionis","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":86,"url":"https:\/\/perezmedia.net\/beltofvenus\/2005\/01\/17\/doublemultiple_6\/","url_meta":{"origin":82,"position":5},"title":"Theta 2 Orionis (Struve 16)","author":"jperez1690","date":"January 17, 2005","format":false,"excerpt":"Theta 2 Orionis","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\/82","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=82"}],"version-history":[{"count":0,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/82\/revisions"}],"wp:attachment":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/media?parent=82"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/categories?post=82"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/tags?post=82"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}