– Som brukligt, fotograferad fr\u00e5n Mount Tirup genom ett 14 tums SCT, dock denna g\u00e5ng f\u00e5ngad med en nyf\u00f6rv\u00e4rd, en mono CMOS fullformatskamera fr\u00e5n Touptek. Jag \u00f6nskar jag kunde f\u00e5tt med mer detaljer i bilden, men lyckades bara f\u00e5nga fotoner under en och en halv timme. Men supernovan syns likv\u00e4l klart och tydligt kl halv 12 strax utanf\u00f6r galaxens centrum.\u00a0<\/p>\n\n\n\n Lundmark hade varit f\u00f6rv\u00e5nad \u00f6ver (eller inte) att en amat\u00f6rastronom utanf\u00f6r Lund kunnat fotografera denna praktfulla stj\u00e4rnsm\u00e4ll.<\/p>\n\n\n\n Tips: P\u00e5 SAAF-sajten Nattmolnet<\/a> finns en del andra studier av amat\u00f6rkolleger till Ronnie.<\/p>\n\n\n\n Om vi kikar in p\u00e5 GOTO:s web st\u00e5r d\u00e4r f\u00f6ljande att den uppt\u00e4cktes 14 juli i Pegasus stj\u00e4rnbild och klassas som en supernova av typ Ia. Galaxen ligger ca 40 miljoner ljus\u00e5r bort. Magnituden vis runt 11-12 idag.<\/p>\n\n\n\n Fr\u00e5n GOTO-sajten <\/a>saxas f\u00f6ljande bild (mera v\u00e5gr\u00e4t och v\u00e4nd \u00e4n Ronnies) och text p\u00e5 engelska:<\/p>\n\n\n\n A discovery magnitude of 17 in the GOTO L-band meant that 2025rbs was easily observable for spectroscopic follow-up and it was quickly classified<\/a> as a type Ia supernova, making it the fourth confirmed, and the first thermonuclear, supernova discovered in NGC 7331.Type Ia supernovae like 2025rbs typically reach a peak brightness around magnitude -19.3, which at the distance of NGC 7331 would result in an apparent magnitude of ~11. This is bright enough to be seen visually through telescopes with apertures >70 mm, however the proximity of the supernova to the core of NGC 7331 makes it more of a challenge.<\/p>\n\n\n\n Since discovery it has quickly become the brightest supernova in the sky as of the 25th of July, with the latest measurements<\/a> placing it around magnitude 12. A large amount of spectroscopic and photometric data is also being collected by both professional and amateur astronomers and we are excited to continue to observe 2025rbs as it evolves.<\/p>\n","protected":false},"excerpt":{"rendered":" Mount Tirup f\u00e5ngar nyaste supernovan Aprop\u00e5 Knut Lundmark och supernovorna rapporterar Ronnie Svensson om “den senaste snackis-supernovan” SN2025rbs i NGC7331. Bilden togs natten till onsdagen denna vecka. – Som brukligt, fotograferad fr\u00e5n Mount Tirup genom ett 14 tums SCT, dock denna g\u00e5ng f\u00e5ngad med en nyf\u00f6rv\u00e4rd, en mono CMOS fullformatskamera fr\u00e5n Touptek. Jag \u00f6nskar jag… L\u00e4s mer »Nr 35 2025<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rop_custom_images_group":[],"rop_custom_messages_group":[],"rop_publish_now":"initial","rop_publish_now_accounts":[],"rop_publish_now_history":[],"rop_publish_now_status":"pending","neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[3],"tags":[],"_links":{"self":[{"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/97886"}],"collection":[{"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/comments?post=97886"}],"version-history":[{"count":4,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/97886\/revisions"}],"predecessor-version":[{"id":97891,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/97886\/revisions\/97891"}],"wp:attachment":[{"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/media?parent=97886"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/categories?post=97886"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/tags?post=97886"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"\"](\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2025\/07\/LRGB-1.jpg\")
<\/a><\/figure>\n\n\n\n
SN 2025rbs and its host galaxy NGC 7331. Image is a composite of observations taken in the GOTO L and Sloan g, r, and i bands by TwIST<\/em><\/figcaption><\/figure>\n\n\n\n