{"id":364,"date":"2007-09-25T23:32:06","date_gmt":"2007-09-25T23:32:06","guid":{"rendered":"http:\/\/perezmedia.net\/beltofvenus\/2007\/09\/25\/alpha_piscium_s\/"},"modified":"2007-09-25T23:32:06","modified_gmt":"2007-09-25T23:32:06","slug":"alpha_piscium_s","status":"publish","type":"post","link":"https:\/\/perezmedia.net\/beltofvenus\/2007\/09\/25\/alpha_piscium_s\/","title":{"rendered":"Alpha Piscium (Struve 202)"},"content":{"rendered":"

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

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

The first diffraction ring on the primary of this close double appeared to fall just short of bisecting the center of its companion. I estimated a separation of 1.4 arc seconds; however, Brian Workman’s Double Star Calculator gives 1.78 arc seconds. My PA measurement worked out to 268 degrees, which compares well with the calculated PA of 266 degrees. Color was pretty difficult to pick up, but appeared to be pale yellow and pale blue.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Subject<\/b><\/td>\nAlpha Piscium (STF 202)<\/b><\/td>\n<\/tr>\n
Classification<\/b><\/td>\nDouble Star<\/td>\n<\/tr>\n
Position (J2000)<\/b><\/td>\nPisces [RA: 02:02:02.8 \/ Dec: +02:45:49]*<\/td>\n<\/tr>\n
Position Angle*<\/b><\/td>\n268\u00c2\u00b0 [my measurement]
266\u00c2\u00b0 [2007.7 Brian Workman’s DS Calculator]<\/td>\n<\/tr>\n
Separation*<\/b><\/td>\n1.4″ [my measurement]
1.78″ [2007.7 Brian Workman’s DS Calculator]<\/td>\n<\/tr>\n
Magnitudes*<\/b><\/td>\n4.3 \/ 5.2<\/td>\n<\/tr>\n
Spectral Types*<\/b><\/td>\nA0p \/ A3m<\/td>\n<\/tr>\n
Date\/Time<\/b><\/td>\nSEP 20, 2007 – 11:15 PM MST (SEP 21, 2007 – 06:15 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 Sirius Pl\u00c3\u00b6ssl + 2X Barlow (240X)
12 mm Meade Astrometric EP + 2X Barlow (200X)<\/td>\n<\/tr>\n
Conditions<\/b><\/td>\nBreezy, 1st quarter moon, patchy cirrus<\/td>\n<\/tr>\n
Seeing<\/b><\/td>\n5\/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); Starry Night Pro Plus 5.8<\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Alpha Piscium<\/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":[56,57,34,15],"tags":[],"class_list":["post-364","post","type-post","status-publish","format-standard","hentry","category-double-star","category-sg-double-star","category-sgc-pisces","category-sketch-gallery"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":366,"url":"https:\/\/perezmedia.net\/beltofvenus\/2007\/09\/30\/65_piscium_stru\/","url_meta":{"origin":364,"position":0},"title":"65 Piscium (Struve 61)","author":"jperez1690","date":"September 30, 2007","format":false,"excerpt":"65 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":363,"url":"https:\/\/perezmedia.net\/beltofvenus\/2007\/09\/24\/zeta_piscium_st\/","url_meta":{"origin":364,"position":1},"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":14,"url":"https:\/\/perezmedia.net\/beltofvenus\/2004\/08\/01\/double_star_ske\/","url_meta":{"origin":364,"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":282,"url":"https:\/\/perezmedia.net\/beltofvenus\/2006\/09\/04\/psi1_piscium_st\/","url_meta":{"origin":364,"position":3},"title":"Psi-1 Piscium (Struve 88)","author":"jperez1690","date":"September 4, 2006","format":false,"excerpt":"Psi-1 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":21,"url":"https:\/\/perezmedia.net\/beltofvenus\/2004\/08\/01\/published_mater\/","url_meta":{"origin":364,"position":4},"title":"Published Material","author":"jperez1690","date":"August 1, 2004","format":false,"excerpt":"Updated December 25, 2010 Books Astronomical Sketching: A Step-by-Step Introduction (Patrick Moore's Practical Astronomy Series) By Richard Handy, David B. Moody, Jeremy Perez, Erika Rix, Sol Robbins.Published by Springer, 2007. Contributed three chapters: Comets, Star Clusters, and Nebulae. Stargazing with Binoculars Firefly book by Robin Scagell and David Frydman -\u2026","rel":"","context":"In "General"","block_context":{"text":"General","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/general\/"},"img":{"alt_text":"","src":"http:\/\/www.assoc-amazon.com\/e\/ir?t=thbeofve-20&l=as2&o=1&a=0387262407","width":350,"height":200},"classes":[]},{"id":303,"url":"https:\/\/perezmedia.net\/beltofvenus\/2006\/12\/02\/alpha_leonis_re\/","url_meta":{"origin":364,"position":5},"title":"Alpha Leonis (Regulus \/ Struve 6)","author":"jperez1690","date":"December 2, 2006","format":false,"excerpt":"Alpha 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":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/364","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=364"}],"version-history":[{"count":0,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/364\/revisions"}],"wp:attachment":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/media?parent=364"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/categories?post=364"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/tags?post=364"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}