{"id":150,"date":"2005-08-13T23:45:00","date_gmt":"2005-08-13T23:45:00","guid":{"rendered":"http:\/\/perezmedia.net\/beltofvenus\/2005\/08\/13\/sigma_cassiopei\/"},"modified":"2021-11-27T22:59:36","modified_gmt":"2021-11-27T22:59:36","slug":"sigma_cassiopei","status":"publish","type":"post","link":"https:\/\/perezmedia.net\/beltofvenus\/2005\/08\/13\/sigma_cassiopei\/","title":{"rendered":"Sigma Cassiopeiae (Struve 3049)"},"content":{"rendered":"


\nOctober 18, 2006: To help provide a consistent style for my double star sketches, the above sketch is a digital update to the original sketch.<\/i>
\n<\/p>\n

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

This is the closest AL Double I’ve observed so far. Both stars were white. The secondary appeared to sit at 330\u00c2\u00b0 PA, and a distance of about 2.5 diffraction rings from the primary…so maybe that’s about 2.5″? Listed values from the AL double star list are 326\u00c2\u00b0 and 3″.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Subject<\/b><\/td>\nSigma Cassiopeiae (Struve 3049)<\/td>\n<\/tr>\n
Classification<\/b><\/td>\nTriple Star<\/td>\n<\/tr>\n
Position<\/b><\/td>\nCassiopeia [RA: 23:59:00 \/ Dec: +55:45]*<\/td>\n<\/tr>\n
Separation*<\/b><\/td>\n3″<\/td>\n<\/tr>\n
Magnitudes*<\/b><\/td>\n5.0, 7.1<\/td>\n<\/tr>\n
Position Angle*<\/b><\/td>\n326\u00c2\u00b0<\/td>\n<\/tr>\n
Date\/Time<\/b><\/td>\n08\/13\/05 – 11:45 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>\nPartly cloudy, calm, 55\u00c2\u00b0F<\/td>\n<\/tr>\n
Seeing<\/b><\/td>\n6\/10<\/td>\n<\/tr>\n
Transparency<\/b><\/td>\nNELM Mag 5.8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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

Sigma Cassiopeiae<\/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":[56,57,65,15],"tags":[],"class_list":["post-150","post","type-post","status-publish","format-standard","hentry","category-double-star","category-sg-double-star","category-sgc-cassiopeia","category-sketch-gallery"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":141,"url":"https:\/\/perezmedia.net\/beltofvenus\/2005\/08\/01\/doublemultiple_12\/","url_meta":{"origin":150,"position":0},"title":"Eta Cassiopeiae (Struve 60)","author":"jperez1690","date":"August 1, 2005","format":false,"excerpt":"Eta Cassiopeiae","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":150,"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":149,"url":"https:\/\/perezmedia.net\/beltofvenus\/2005\/08\/12\/double_star_ent\/","url_meta":{"origin":150,"position":2},"title":"Double Star Entries Added","author":"jperez1690","date":"August 12, 2005","format":false,"excerpt":"20050812","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":21,"url":"https:\/\/perezmedia.net\/beltofvenus\/2004\/08\/01\/published_mater\/","url_meta":{"origin":150,"position":3},"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":83,"url":"https:\/\/perezmedia.net\/beltofvenus\/2005\/01\/16\/doublemultiple_3\/","url_meta":{"origin":150,"position":4},"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":368,"url":"https:\/\/perezmedia.net\/beltofvenus\/2007\/10\/18\/ngc_457_and_ngc\/","url_meta":{"origin":150,"position":5},"title":"NGC 457 and NGC 436","author":"jperez1690","date":"October 18, 2007","format":false,"excerpt":"NGC 457 and NGC 436","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":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/150","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=150"}],"version-history":[{"count":1,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/150\/revisions"}],"predecessor-version":[{"id":737,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/150\/revisions\/737"}],"wp:attachment":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/media?parent=150"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/categories?post=150"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/tags?post=150"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}