{"id":433,"date":"2008-09-21T22:31:56","date_gmt":"2008-09-21T22:31:56","guid":{"rendered":"http:\/\/perezmedia.net\/beltofvenus\/2008\/09\/21\/38_lyncis_struv\/"},"modified":"2008-09-21T22:31:56","modified_gmt":"2008-09-21T22:31:56","slug":"38_lyncis_struv","status":"publish","type":"post","link":"https:\/\/perezmedia.net\/beltofvenus\/2008\/09\/21\/38_lyncis_struv\/","title":{"rendered":"38 Lyncis (Struve 1334)"},"content":{"rendered":"

<\/a>
Click image for larger version<\/i><\/p>\n

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

My first attempt at measuring this double star on April 10th was foiled by a sudden deterioration in seeing. So I hit it again on the 12th when I was able to enjoy the interesting color contrast of this close double under more stable air. The primary shone with a brilliant cyan hue while its companion buzzed with a dull orange color. I measured a PA of 226 degrees which compares to a 1995 value (Wycoff+, 2006) of 228 degrees. I came up with a separation of 3.4 arc seconds in the astrometric eyepiece, compared to a 1995 measurement of 3.14 arc seconds. I did not measure the widely separated C and D components, but catalogued values can be found below. The B star itself is a tight double with a 1988 WDS measurement of 83 degrees \/ 0.1 arc seconds.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Subject<\/b><\/td>\n38 Lyncis (STF 1334)<\/td>\n<\/tr>\n
Classification<\/b><\/td>\nMultiple Star<\/td>\n<\/tr>\n
Position (J2000)<\/b><\/td>\nLynx [RA: 9:18:15.6 \/ Dec: +36:48:08]*<\/td>\n<\/tr>\n
Position Angle*<\/b><\/td>\n\nA-Bb: 226° [2008.3 my measurement]; 228° [1995.1(Wycoff+, 2006)]
\nBb-C: 212° [1909 WDS]
\nBb-D: 256° [1879 WDS]<\/td>\n<\/tr>\n
Separation*<\/b><\/td>\n\nA-Bb: 3.4″ [2008.3 my measurement]; 3.14″ [1995.1(Wycoff+, 2006)]
\nBb-C: 87.7″ [1909 WDS]
\nBb-D: 177.9″ [1879 WDS]<\/td>\n<\/tr>\n
Magnitudes*<\/b><\/td>\nA: 4.0; Bb: 6.6; C: 10.8; D: 10.7<\/td>\n<\/tr>\n
Spectral Types*<\/b><\/td>\nA: A2<\/td>\n<\/tr>\n
Date\/Time<\/b><\/td>\nAPR 12, 2008 – 9:15 PM MST (APR 13, 2008 – 04:15 UT)<\/td>\n<\/tr>\n
Observing Loc.<\/b><\/td>\nFlagstaff, Arizona, USA – Home<\/td>\n<\/tr>\n
Instrument<\/b><\/td>\nOrion Skyview Pro 6LT (150 mm dia.\/1200 mm F\/L)<\/td>\n<\/tr>\n
Eyepieces\/Mag.<\/b><\/td>\n10 mm Sirius Pl\u00f6ssl + 2X Barlow (240X)
12 mm Meade Astrometric EP + 2X Barlow (200X)<\/td>\n<\/tr>\n
Conditions<\/b><\/td>\nClear, first quarter moon<\/td>\n<\/tr>\n
Seeing<\/b><\/td>\n6\/10 Pickering<\/td>\n<\/tr>\n
Transparency<\/b><\/td>\nNELM Mag 5.0<\/td>\n<\/tr>\n
*References<\/b><\/td>\nThe Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996); Double stars in astrometric catalogs (Wycoff+, 2006); Catalogue of Stellar Spectral Classifications (Skiff, 2005)<\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

38 Lyncis<\/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":[56,57,112,15],"tags":[],"class_list":["post-433","post","type-post","status-publish","format-standard","hentry","category-double-star","category-sg-double-star","category-sgc-lynx","category-sketch-gallery"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":451,"url":"https:\/\/perezmedia.net\/beltofvenus\/2008\/12\/26\/12_lyncis_struv\/","url_meta":{"origin":433,"position":0},"title":"12 Lyncis (Struve 948)","author":"jperez1690","date":"December 26, 2008","format":false,"excerpt":"12 Lyncis","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":452,"url":"https:\/\/perezmedia.net\/beltofvenus\/2008\/12\/31\/19_lyncis_struv\/","url_meta":{"origin":433,"position":1},"title":"19 Lyncis (Struve 1062)","author":"jperez1690","date":"December 31, 2008","format":false,"excerpt":"19 Lyncis","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":420,"url":"https:\/\/perezmedia.net\/beltofvenus\/2008\/07\/20\/struve_2306\/","url_meta":{"origin":433,"position":2},"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":363,"url":"https:\/\/perezmedia.net\/beltofvenus\/2007\/09\/24\/zeta_piscium_st\/","url_meta":{"origin":433,"position":3},"title":"Zeta Piscium (Struve 100)","author":"jperez1690","date":"September 24, 2007","format":false,"excerpt":"Zeta Piscium","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":433,"position":4},"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":364,"url":"https:\/\/perezmedia.net\/beltofvenus\/2007\/09\/25\/alpha_piscium_s\/","url_meta":{"origin":433,"position":5},"title":"Alpha Piscium (Struve 202)","author":"jperez1690","date":"September 25, 2007","format":false,"excerpt":"Alpha Piscium","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\/433","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=433"}],"version-history":[{"count":0,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/433\/revisions"}],"wp:attachment":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/media?parent=433"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/categories?post=433"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/tags?post=433"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}