– Jag tog denna bild p\u00e5 kv\u00e4llen den 28 augusti och d\u00e5 hade UZ Boo sjunkit till ca 13,7-13,8. Under nedg\u00e5ngen till magnitud 20 har den haft tv\u00e5 sm\u00e5utbrott p\u00e5\u00a0 2-3 magnituder. En m\u00e4tning visade att den dygnet f\u00f6re min bild var nere p\u00e5 magnitud under 15,9.<\/p>\n\n\n\n
UZ Boo uppt\u00e4cktes och publicerades 1940 av C M Hanley<\/strong> och Harlow Shapley<\/strong> efter genomg\u00e5ng av gamla Harvard-pl\u00e5tar \u00e4nda tillbaka till 1890.<\/p>\n\n\n\n K\u00e4nda utbrott har skett 1890, 1929, 1937, 1938, 1978, 1994, 2003, 2013 och nu 2024.<\/p>\n\n\n\n Variabla stj\u00e4rnor blev tidigt en f\u00f6rem\u00e5l f\u00f6r den d\u00e5 unga amat\u00f6rastronomiska eliten i Malm\u00f6 (Bengt R\u00f6nde enav de ledande), och Bengt har inte sl\u00e4ppt sin klockark\u00e4rlek till stj\u00e4rnor med s\u00e5 kallad f\u00f6r\u00e4nderlig ljusstyrka. Ljuskurvor f\u00f6r UZ Boo kan bl a f\u00f6ljas p\u00e5 facebook, d\u00e4r Hans Bengtsson<\/strong> f\u00f6ljer dramatiken. Kolla \u00e4ven SAAF:s variabilister.<\/p>\n","protected":false},"excerpt":{"rendered":" UZ Boo \u00e4r p\u00e5 g\u00e5ng igen Bengt R\u00f6nde rapporterar att i v\u00e4ntan p\u00e5 den rekurrenta novan, T Corona Borealis, f\u00f6rv\u00e4ntade utbrott under 2024 f\u00e5r vi n\u00f6ja oss med att en dv\u00e4rgnova av U Geminorum-typ, UZ Bootis, har f\u00e5tt ett utbrott den 8 augusti. Den ligger normalt p\u00e5 magnitud 20 men f\u00e5r vid s\u00e4llsynta tillf\u00e4llen ett… L\u00e4s mer »Nr 55 2024<\/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\/96278"}],"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=96278"}],"version-history":[{"count":3,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/96278\/revisions"}],"predecessor-version":[{"id":96282,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/96278\/revisions\/96282"}],"wp:attachment":[{"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/media?parent=96278"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/categories?post=96278"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/tags?post=96278"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"\"](\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2024\/08\/UZ-Boo-med-magn-20240828-2149-1-scaled.jpg\")
<\/a><\/figure>\n\n\n\n