{"id":321,"date":"2007-03-05T21:19:52","date_gmt":"2007-03-05T21:19:52","guid":{"rendered":"http:\/\/perezmedia.net\/beltofvenus\/2007\/03\/05\/pi_lupi_hj_4728\/"},"modified":"2007-03-05T21:19:52","modified_gmt":"2007-03-05T21:19:52","slug":"pi_lupi_hj_4728","status":"publish","type":"post","link":"https:\/\/perezmedia.net\/beltofvenus\/2007\/03\/05\/pi_lupi_hj_4728\/","title":{"rendered":"Pi Lupi (HJ 4728)"},"content":{"rendered":"

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

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

If you live near 35 degrees North Latitude, and enjoy overcoming the adversity of observing far southern objects, you may want to give the double star Pi Lupi a try. This pair rises no more than 8 degrees above the horizon where I live. Unlike Gamma Velorum<\/a>, it is a fairly close double. SItting in the mush above the neighbor’s houses, I had to be very patient to catch glimpses of the two components as separate, swimming points. Discerning color was also difficult with all the distortion, but overall the pair had a bluish white appearance. I estimated a position angle of either 60 or 240 degrees, depending on which was the primary. The Washington Visual Double Star Catalog gives a 1983 value of 70.5 degrees, and a separation of 1.5 arc seconds. The sketch above contains a frozen detail to give you an idea of what the mushy view looked like in general. Clicking the image for the large version may help see that inset better.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Subject<\/b><\/td>\nPi Lupi (HJ 4728)<\/b><\/td>\n<\/tr>\n
Classification<\/b><\/td>\nDouble Star<\/td>\n<\/tr>\n
Position (J2000)<\/b><\/td>\nLupus [RA: 15:05:07 \/ Dec: -47:03:04]*<\/td>\n<\/tr>\n
Position Angle*<\/b><\/td>\n70.5\u00c2\u00b0 (1983)<\/td>\n<\/tr>\n
Separation*<\/b><\/td>\n1.5″ (1983)<\/td>\n<\/tr>\n
Magnitudes*<\/b><\/td>\n4.7; 4.8<\/td>\n<\/tr>\n
Spectral Types*<\/b><\/td>\nB5; B5<\/td>\n<\/tr>\n
Date\/Time<\/b><\/td>\nJAN 26, 2007 – 06:40 AM MST (JAN 26, 2007 – 13:40 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 + 2X Barlow (240X)<\/td>\n<\/tr>\n
Conditions<\/b><\/td>\nClear, calm, 18\u00c2\u00b0 F<\/td>\n<\/tr>\n
Seeing<\/b><\/td>\n2\/10 Pickering<\/td>\n<\/tr>\n
Transparency<\/b><\/td>\nNELM Mag ~4.0<\/td>\n<\/tr>\n
References<\/b><\/td>\nThe Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)<\/td>\n<\/tr>\n<\/table>\n

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

Pi Lupi<\/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":[56,57,101,15],"tags":[],"class_list":["post-321","post","type-post","status-publish","format-standard","hentry","category-double-star","category-sg-double-star","category-sgc-lupus","category-sketch-gallery"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":14,"url":"https:\/\/perezmedia.net\/beltofvenus\/2004\/08\/01\/double_star_ske\/","url_meta":{"origin":321,"position":0},"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":277,"url":"https:\/\/perezmedia.net\/beltofvenus\/2006\/09\/03\/pi_bootis_struv\/","url_meta":{"origin":321,"position":1},"title":"Pi Boötis (Struve 1864)","author":"jperez1690","date":"September 3, 2006","format":false,"excerpt":"Pi Bootis","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":367,"url":"https:\/\/perezmedia.net\/beltofvenus\/2007\/10\/03\/alpha_ursae_maj\/","url_meta":{"origin":321,"position":2},"title":"Alpha Ursae Minoris (Polaris \/ Struve 93)","author":"jperez1690","date":"October 3, 2007","format":false,"excerpt":"Alpha Ursae Minoris","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":401,"url":"https:\/\/perezmedia.net\/beltofvenus\/2008\/04\/13\/gamma_virginis\/","url_meta":{"origin":321,"position":3},"title":"Gamma Virginis (Porrima \/ Struve 1670)","author":"jperez1690","date":"April 13, 2008","format":false,"excerpt":"Gamma Virginis","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":301,"url":"https:\/\/perezmedia.net\/beltofvenus\/2006\/11\/28\/zeta_cancri_str\/","url_meta":{"origin":321,"position":4},"title":"Zeta Cancri (Struve 1196)","author":"jperez1690","date":"November 28, 2006","format":false,"excerpt":"Zeta Cancri","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":321,"position":5},"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":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/321","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=321"}],"version-history":[{"count":0,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/321\/revisions"}],"wp:attachment":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/media?parent=321"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/categories?post=321"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/tags?post=321"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}