{"id":544,"date":"2010-09-22T01:09:03","date_gmt":"2010-09-22T01:09:03","guid":{"rendered":"http:\/\/perezmedia.net\/beltofvenus\/2010\/09\/22\/ngc_6905_-_the\/"},"modified":"2010-09-22T01:09:03","modified_gmt":"2010-09-22T01:09:03","slug":"ngc_6905_-_the","status":"publish","type":"post","link":"https:\/\/perezmedia.net\/beltofvenus\/2010\/09\/22\/ngc_6905_-_the\/","title":{"rendered":"NGC 6905 &#8211; The Blue Flash Nebula"},"content":{"rendered":"<div class=\"imageblock\"><a href=\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2010\/img2010090501_NGC6905lg.jpg\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" src=\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2010\/img2010090501_NGC6905.jpg\" alt=\"Sketch of NGC 6905 (The Blue Flash Nebula)\"><\/a><\/p>\n<p class=\"caption\">Sketch of NGC 6905 (The Blue Flash Nebula)<br \/>Click image for larger version.<\/p>\n<\/div>\n<p><b>Observation Notes:<\/b><\/p>\n<p>NGC 6905 is bracketed by 3 11th and 12th magnitude stars and at low power simply seems to be a patch of unresolved starlight. Higher power drew it out, and it displayed a mild north-south elongation. Despite the common name, I was unable to see color in it at any magnification. The nebula was brighter across its eastern side and possessed a lumpy texture on the west side. These lumps appeared north-northwest of center, west-southwest of center, and toward the center itself. I did not observe a central star. It responded well to the Ultrablock filter which helped isolate it and increase contrast within its uneven disc.<\/p>\n<div class=\"imageblock\"><img decoding=\"async\" src=\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2010\/img2010090501_NGC6905dss.jpg\" alt=\"Sketch\/NOAO Photo Comparison of NGC 6905 (The Blue Flash Nebula)\"><\/p>\n<p class=\"caption\">Sketch\/NOAO Photo Comparison of NGC 6905 (The Blue Flash Nebula)<\/p>\n<\/div>\n<table class=\"objectdata\">\n<tr>\n<td><b>Subject<\/b><\/td>\n<td class=\"subject\">NGC 6905<\/td>\n<\/tr>\n<tr>\n<td><b>Other Desig.<\/b><\/td>\n<td>NGC 6905; BWE 2020+1956; CSI+19-20201; GB6 B2020+1956; 87GB 202009.1+195631; GCRV 12720; GSC 01639-01907; HD 193949; Hen 2-466; IRAS 20201+1956; 2MASX J20222299+2006162; MITG J202222+2006; PK 61-9.1; PLX 4855.00; PLX 4855; PN G061.4-09.5; PN ARO 75; PN VV 257; PN VV&#8217; 535; V* NT Del; WD 2020+199; [KW97] 46-1; Blue Flash Nebula<\/td>\n<\/tr>\n<tr>\n<td><b>Classification<\/b><\/td>\n<td>Planetary Nebula<\/td>\n<\/tr>\n<tr>\n<td><b>Position*<\/b><\/td>\n<td>Delphinus: [RA: 20 22 23.02 \/ Dec: 20 06 16.4]<\/td>\n<\/tr>\n<tr>\n<td><b>Size<\/b><\/td>\n<td>42&#8243; x 35&#8243;<\/td>\n<\/tr>\n<tr>\n<td><b>Brightness*<\/b><\/td>\n<td>11.1 vMag; 11.9 bMag<\/td>\n<\/tr>\n<tr>\n<td><b>Date\/Time<\/b><\/td>\n<td>SEP 05, 2010, 11:00 PM MST<br \/>(SEP 06, 2010, 0600 UT)<\/td>\n<\/tr>\n<tr>\n<td><b>Observing Loc.<\/b><\/td>\n<td>Home &#8211; Flagstaff, Arizona, USA<\/td>\n<\/tr>\n<tr>\n<td><b>Instrument<\/b><\/td>\n<td>SkyQuest XT8 (8 inch f\/5.9 Dobsonian)<\/td>\n<\/tr>\n<tr>\n<td><b>Eyepieces\/Mag.<\/b><\/td>\n<td>Pentax XW10+2X Barlow+Orion Ultrablock Filter<\/td>\n<\/tr>\n<tr>\n<td><b>Conditions<\/b><\/td>\n<td>Partly cloudy, breezy<\/td>\n<\/tr>\n<tr>\n<td><b>Seeing<\/b><\/td>\n<td>5\/10 Pickering<\/td>\n<\/tr>\n<tr>\n<td><b>Transparency<\/b><\/td>\n<td>SQM 20.7<\/td>\n<\/tr>\n<tr>\n<td><b>*Sources<\/b><\/td>\n<td><a href=\"http:\/\/simbad.u-strasbg.fr\/simbad\/sim-fid\" target=\"_blank\" rel=\"noopener\">SIMBAD<\/a>; <a href=\"http:\/\/www.noao.edu\/outreach\/aop\/observers\/n6905.html\" target=\"_blank\" rel=\"noopener\">NOAO<\/a>; <a href=\"http:\/\/www.ngcicproject.org\" target=\"_blank\" rel=\"noopener\">NGC\/IC Project<\/a><\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>NGC 6905<\/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":[16,62,19,42,63,83],"tags":[],"class_list":["post-544","post","type-post","status-publish","format-standard","hentry","category-deep-sky","category-planetary-nebula","category-sg-deep-sky","category-sg-nebula","category-sg-planetary-nebula","category-sgc-delphinus"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":191,"url":"https:\/\/perezmedia.net\/beltofvenus\/2005\/10\/01\/ngc_1514\/","url_meta":{"origin":544,"position":0},"title":"NGC 1514","author":"jperez1690","date":"October 1, 2005","format":false,"excerpt":"NGC 1514","rel":"","context":"In &quot;Deep Sky&quot;","block_context":{"text":"Deep Sky","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/deep-sky\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":343,"url":"https:\/\/perezmedia.net\/beltofvenus\/2007\/07\/14\/ngc_5873\/","url_meta":{"origin":544,"position":1},"title":"NGC 5873","author":"jperez1690","date":"July 14, 2007","format":false,"excerpt":"NGC 5873","rel":"","context":"In &quot;Deep Sky&quot;","block_context":{"text":"Deep Sky","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/deep-sky\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":105,"url":"https:\/\/perezmedia.net\/beltofvenus\/2005\/02\/04\/m46_and_ngc_243\/","url_meta":{"origin":544,"position":2},"title":"Messier 46 and NGC 2438","author":"jperez1690","date":"February 4, 2005","format":false,"excerpt":"M046","rel":"","context":"In &quot;Deep Sky&quot;","block_context":{"text":"Deep Sky","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/deep-sky\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":296,"url":"https:\/\/perezmedia.net\/beltofvenus\/2006\/10\/27\/ngc_2440\/","url_meta":{"origin":544,"position":3},"title":"NGC 2440","author":"jperez1690","date":"October 27, 2006","format":false,"excerpt":"NGC 2440","rel":"","context":"In &quot;Deep Sky&quot;","block_context":{"text":"Deep Sky","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/deep-sky\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":192,"url":"https:\/\/perezmedia.net\/beltofvenus\/2005\/10\/01\/ngc_2392\/","url_meta":{"origin":544,"position":4},"title":"NGC 2392 &#8211; Eskimo Nebula\/Clown Nebula","author":"jperez1690","date":"October 1, 2005","format":false,"excerpt":"NGC 2392","rel":"","context":"In &quot;Deep Sky&quot;","block_context":{"text":"Deep Sky","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/deep-sky\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":360,"url":"https:\/\/perezmedia.net\/beltofvenus\/2007\/09\/16\/ngc_40\/","url_meta":{"origin":544,"position":5},"title":"NGC 40","author":"jperez1690","date":"September 16, 2007","format":false,"excerpt":"NGC 0040","rel":"","context":"In &quot;Deep Sky&quot;","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\/544","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=544"}],"version-history":[{"count":0,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/posts\/544\/revisions"}],"wp:attachment":[{"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/media?parent=544"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/categories?post=544"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/perezmedia.net\/beltofvenus\/wp-json\/wp\/v2\/tags?post=544"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}