{"id":21842,"date":"2011-10-11T22:10:23","date_gmt":"2011-10-11T21:10:23","guid":{"rendered":"http:\/\/www.astb.se\/cassiopeiabloggen\/?p=21842"},"modified":"2011-10-12T06:09:46","modified_gmt":"2011-10-12T05:09:46","slug":"nr-257-2011","status":"publish","type":"post","link":"https:\/\/www.astb.se\/cassiopeiabloggen\/2011\/10\/11\/nr-257-2011\/","title":{"rendered":"Nr 257 2011"},"content":{"rendered":"<h2>Bruna pyttedv\u00e4rgar en masse!<\/h2>\n<p>Ett kanadensiskt forskarteam har hittat ett par dussin nya bruna dv\u00e4rgar, en med massan bara 6 ggr Jupiters. Dessutom har de hittat en stj\u00e4rnhop<span style=\"font-weight: bold;\"> <\/span>i viken h\u00e4lften av stj\u00e4rnorna \u00e4r just bruna dv\u00e4rgar, &#8220;misslyckade solar&#8221;.<\/p>\n<p><a href=\"http:\/\/www.physorg.com\/news\/2011-10-astronomers-bounty-stars.html\">Enligt forskarna fr\u00e5n University of Toronto<\/a> finns egentligen ingen skillnad mellan hur dessa stj\u00e4rnor och t ex Jupiter-planeter bildas. Skillnaden \u00e4r i varje fall inte &#8220;principiell&#8221;.<\/p>\n<p>De bruna dv\u00e4rgarnas tillkomsthistoria och solit\u00e4ra egenskaper, pekar p\u00e5 att\u00a0 de\u00a0 flesta mycket v\u00e4l kan ha skapats i utkanterna av stj\u00e4rnbildande\u00a0 gas- och stoftmoln, och kanske har de dessutom slungats ut fr\u00e5n andra stj\u00e4rnsystem.<\/p>\n<p>De flesta bruna dv\u00e4rgarna i NGC 1333 och i Rho Ophiuchi-hopen har massor\u00a0 under 20 ggr Jupiters.<\/p>\n<p>P\u00e5 denna bild, en komposit fr\u00e5n Subaru-teleskopet p\u00e5 Hawaii i optiskt och infrar\u00f6tt ljus, syns de nyuppt\u00e4ckta dv\u00e4rgarna inom gula cirklar, tidigare k\u00e4nda inom vita cirklar och pilen pekar p\u00e5 pytten i NGC 1333, den med en massa 6 ggr Jupiters.<\/p>\n<p><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/surveyngc1333_composite_bd_5-1.jpg\"><img decoding=\"async\" class=\"aligncenter size-large wp-image-21860\" title=\"Foto: SONYC Team\/Subaru Telescope\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/surveyngc1333_composite_bd_5-1-847x1024.jpg\" alt=\"\" width=\"450\" height=\"544\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/surveyngc1333_composite_bd_5-1-847x1024.jpg 847w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/surveyngc1333_composite_bd_5-1-248x300.jpg 248w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/surveyngc1333_composite_bd_5-1.jpg 1500w\" sizes=\"(max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<h2>According to\u00a0 Fred Hoyle&#8230;<\/h2>\n<p>.. \u00e4r det detta som g\u00e4ller:<\/p>\n<p><span style=\"text-decoration: underline;\">&#8220;Det \u00e4r b\u00e4ttre att underh\u00e5lla och ha fel \u00e4n att vara en tr\u00e5km\u00e5ns och ha r\u00e4tt.&#8221;<\/span><\/p>\n<h2>Meteoriter avsl\u00f6jar serie av asteroidkrockar<\/h2>\n<p>Den s\u00e5 kallade <span style=\"text-decoration: underline;\">Almahata Sitta-meteoriten<\/span> som slog ner i den nubiska \u00f6knen i Sudan 2008 avsl\u00f6jar en dramatisk tredelad f\u00f6rhistoria: &#8220;Moderasteroiden&#8221; tycks ha varit inblandad i tre olika slags asteroidkrockar, vilket bevisas av att de jordiska resterna visar sig inneh\u00e5ller delar av b\u00e5de \u00e4ldre och primitivare material och material fr\u00e5n mera utvecklade asteroider.<\/p>\n<p>Mer \u00e4n 600 fragment plockades upp fr\u00e5n kraschen 7 oktober 2008, och det var f\u00f6rsta g\u00e5ngen som en asteroid uppt\u00e4ckts ute i rymden f\u00f6r att sen f\u00f6ljas under katastrofkursen genom jordens atmosf\u00e4r.<\/p>\n<p><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/2008TC3_OLS-Centurion2_20081007_shadow_entry_lg.jpg\"><img decoding=\"async\" width=\"512\" height=\"313\" class=\"aligncenter size-full wp-image-21845\" style=\"width: 442px; height: 271px;\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/2008TC3_OLS-Centurion2_20081007_shadow_entry_lg.jpg\" alt=\"\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/2008TC3_OLS-Centurion2_20081007_shadow_entry_lg.jpg 512w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/2008TC3_OLS-Centurion2_20081007_shadow_entry_lg-300x183.jpg 300w\" sizes=\"(max-width: 512px) 100vw, 512px\" \/><\/a><\/p>\n<p>Bilden ovan: asteroiden 2008 TC3 p\u00e5 v\u00e4g in i jordens skugga f\u00f6r att sen krascha i Sudan. Foto: La Sagra Sky Survey, Spain<\/p>\n<p><a href=\"http:\/\/www.redorbit.com\/news\/space\/1112397060\/triple-asteroid-mash-up-could-have-yielded-almahata-sitta-meteorites\">Forskarna med NASA\/Ames Julie Gayon-Markt i spetsen<\/a> s\u00e4ger nu att meteoriterna f\u00f6rknippade med asteroiden 2008TC3.h\u00e4rr\u00f6r fr\u00e5n sm\u00e5planetsfamiljen kallad Nysa-Polana, fr\u00e5n det inre asteroidb\u00e4ltet.<\/p>\n<p>Det finns tre sorters asteroider i denna familj, B, S och X-sorter, och Sudan-fragmenten b\u00e4r alla sp\u00e5r efter flera tr\u00e4ffar och kollisioner mellan de olika asteroidslagen. Impact p\u00e5 impact p\u00e5 impact avsl\u00f6jas.<\/p>\n<p><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/799px-323213main_Petersmeteorites_946-7101.jpg\"><img decoding=\"async\" class=\"aligncenter size-medium wp-image-21850\" title=\"Meteoritjakt i den nubiska \u00e4knen 2009... Foto: Wikipedia\/University of Khartoum\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/799px-323213main_Petersmeteorites_946-7101-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/799px-323213main_Petersmeteorites_946-7101-300x225.jpg 300w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/799px-323213main_Petersmeteorites_946-7101.jpg 799w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<h2>Supernovan i M101<\/h2>\n<p>Min prognos att supernovan i M101, SN 2011fe, skulle bli den mest observerade genom tiderna, verkar st\u00e4mma. Det finns <a href=\"http:\/\/www.rochesterastronomy.org\/sn2011\/sn2011fe.html\">100-tals bilder och ljusskattningar &#8211; kolla t ex h\u00e4r<\/a>, p\u00e5 Rochester-sajten.<\/p>\n<p>Den svenska ljuskurvan, som <strong>Thomas Karlsson <\/strong>f\u00f6rmedlar i sin W-bloggskommentar, kan kompletteras med AAVSO:s:<\/p>\n<p><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/387432193.png\"><img decoding=\"async\" class=\"aligncenter size-medium wp-image-21872\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/387432193-300x186.png\" alt=\"\" width=\"300\" height=\"186\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/387432193-300x186.png 300w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/387432193.png 1012w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>Stj\u00e4rnsm\u00e4llen har uppenbarligen n\u00e5tt en app max-ljusstyrka p\u00e5 -10, en av de ljusaste sm\u00e4llarna p\u00e5 \u00e5r och dag och decennier.<\/p>\n<h2>Stj\u00e4rnpoet<\/h2>\n<p>Den svenske modernisten <strong>Erik Lindegren<\/strong> skrev dikten Arioso f\u00f6r sin samling <em>Sviter<\/em> (1947), och den har av poetiska betraktare sett som b\u00e5de en k\u00e4rleksdikt och en id\u00e9buren dikt.<\/p>\n<p>Tack till<strong> Carl-Olof B\u00f6rjeson<\/strong>, som gr\u00e4ver i svenska diktskatter med stj\u00e4rnmotiv:<\/p>\n<p><!-- p { margin-bottom: 0.21cm; } --><\/p>\n<p style=\"margin-bottom: 0cm;\" lang=\"sv-SE\"><span style=\"color: #000000;\"><span style=\"font-family: Times;\"><span style=\"font-size: large;\">Arioso<\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom: 0cm;\" lang=\"sv-SE\"><span style=\"color: #000000;\"><span style=\"font-family: Times;\"><span style=\"font-size: medium;\">N\u00e5gonstans inom oss \u00e4r vi alltid tillsammans, <\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom: 0cm;\" lang=\"sv-SE\"><span style=\"color: #000000;\"><span style=\"font-family: Times;\"><span style=\"font-size: medium;\">n\u00e5gonstans inom oss kan v\u00e5r k\u00e4rlek aldrig fly <\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom: 0cm;\" lang=\"sv-SE\"><span style=\"color: #000000;\"><span style=\"font-family: Times;\"><span style=\"font-size: medium;\">N\u00e5gonstans <\/span><\/span><\/span><\/p>\n<p style=\"text-indent: 2.3cm; margin-bottom: 0cm;\" lang=\"sv-SE\"><span style=\"color: #000000;\"><span style=\"font-family: Times;\"><span style=\"font-size: medium;\">o n\u00e5gonstans <\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom: 0cm;\" lang=\"sv-SE\"><span style=\"color: #000000;\"><span style=\"font-family: Times;\"><span style=\"font-size: medium;\">har alla t\u00e5gen g\u00e5tt och klockorna stannat; <\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom: 0cm;\" lang=\"sv-SE\"><span style=\"color: #000000;\"><span style=\"font-family: Times;\"><span style=\"font-size: medium;\">n\u00e5gonstans inom oss \u00e4r vi alltid h\u00e4r och nu, \u2028\u00e4r vi alltid du intill f\u00f6rv\u00e4xling och f\u00f6rblandning, <\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom: 0cm;\" lang=\"sv-SE\"><span style=\"color: #000000;\"><span style=\"font-family: Times;\"><span style=\"font-size: medium;\">\u00e4r vi pl\u00f6tsligt undrans under och f\u00f6rvandling, <\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom: 0cm;\" lang=\"sv-SE\"><span style=\"color: #000000;\"><span style=\"font-family: Times;\"><span style=\"font-size: medium;\">brytande havsv\u00e5g, roseneld och sn\u00f6. <\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom: 0cm;\" lang=\"sv-SE\">\n<p style=\"margin-bottom: 0cm;\" lang=\"sv-SE\"><span style=\"color: #000000;\"><span style=\"font-family: Times;\"><span style=\"font-size: medium;\">N\u00e5gonstans inom oss d\u00e4r benen vitnat <\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom: 0cm;\" lang=\"sv-SE\"><span style=\"color: #000000;\"><span style=\"font-family: Times;\"><span style=\"font-size: medium;\">efter forskares och tvivlares nedsegnade t\u00f6rst <\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom: 0cm;\" lang=\"sv-SE\"><span style=\"color: #000000;\"><span style=\"font-family: Times;\"><span style=\"font-size: medium;\">till f\u00f6rnekat glidande <\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom: 0cm;\" lang=\"sv-SE\">\n<p style=\"margin-bottom: 0cm;\" lang=\"sv-SE\"><span style=\"color: #000000;\"><span style=\"font-family: Times;\"><span style=\"font-size: medium;\">till f\u00f6rseglat vikande <\/span><\/span><\/span><\/p>\n<p style=\"text-indent: 2.3cm; margin-bottom: 0cm;\" lang=\"sv-SE\"><span style=\"color: #000000;\"><span style=\"font-family: Times;\"><span style=\"font-size: medium;\">O moln av t\u00f6rst! <\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom: 0cm;\" lang=\"sv-SE\"><span style=\"color: #000000;\"><span style=\"font-family: Times;\"><span style=\"font-size: medium;\">n\u00e5gonstans inom oss <\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom: 0cm;\" lang=\"sv-SE\"><span style=\"color: #000000;\"><span style=\"font-family: Times;\"><span style=\"font-size: medium;\">d\u00e4r dessa ben har vitnat och h\u00e4gringar m\u00f6tts <\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom: 0cm;\" lang=\"sv-SE\"><span style=\"color: #000000;\"><span style=\"font-family: Times;\"><span style=\"font-size: medium;\">h\u00e4ver fj\u00e4rran trygghet som dyningars dyning <\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom: 0cm;\" lang=\"sv-SE\"><span style=\"color: #000000;\"><span style=\"font-family: Times;\"><span style=\"font-size: medium;\">speglar du v\u00e5rt fj\u00e4rran som stj\u00e4rnans i en dyning <\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom: 0cm;\" lang=\"sv-SE\"><span style=\"color: #000000;\"><span style=\"font-family: Times;\"><span style=\"font-size: medium;\">f\u00e4ller dr\u00f6mmen alltid masken och blir du <\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom: 0cm;\" lang=\"sv-SE\"><span style=\"color: #000000;\"><span style=\"font-family: Times;\"><span style=\"font-size: medium;\">som i sm\u00e4rta glider fr\u00e5n mig <\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom: 0cm;\" lang=\"sv-SE\"><span style=\"color: #000000;\"><span style=\"font-family: Times;\"><span style=\"font-size: medium;\">f\u00f6r att \u00e5ter komma \u00e5ter \u2028f\u00f6r att \u00e5ter komma till mig <\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom: 0cm;\" lang=\"sv-SE\"><span style=\"color: #000000;\"><span style=\"font-family: Times;\"><span style=\"font-size: medium;\">mer och mer inom oss, mer och mer du.<\/span><\/span><\/span><\/p>\n<p style=\"margin-bottom: 0cm;\" lang=\"sv-SE\"><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/PER04007-1.jpg\"><img decoding=\"async\" class=\"aligncenter size-medium wp-image-21855\" title=\"Foto: IBL Bildbyr\u00e5 Ljungbyhed\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/PER04007-1-226x300.jpg\" alt=\"\" width=\"226\" height=\"300\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/PER04007-1-226x300.jpg 226w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/PER04007-1.jpg 453w\" sizes=\"(max-width: 226px) 100vw, 226px\" \/><\/a><\/p>\n<p>Det mest konstiga med Erik Lindegren, som levde \u00e5ren 1910-1968 och som eftertr\u00e4dde <strong>Dag Hammarskj\u00f6ld<\/strong> i Svenska Akademien (stol nr 17), INTE har ett litter\u00e4rt s\u00e4llskap uppkallat efter sig.<\/p>\n<h2>Tack f\u00f6r idag!<\/h2>\n<p style=\"margin-bottom: 0cm;\" lang=\"sv-SE\">Vad det blir n\u00e4sta g\u00e5ng? Det vet vi inte ens p\u00e5 W-bloggen! Vi g\u00f6r som <strong>Nacka Skogund <\/strong>och svenska landslaget i fotboll (3-2 \u00f6ver Holland i kv\u00e4ll!), tar livet med en klackspark och sjunger med Nacka:<br \/>\n&#8220;Vi kommer tillbaka, vi kommer tillbaka, fast ingen vet n\u00e4r och ingen vet riktigt hur.&#8221;<\/p>\n<p style=\"margin-bottom: 0cm;\" lang=\"sv-SE\"><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/Philips350200PF.jpg\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-21864\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/Philips350200PF.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/Philips350200PF.jpg 300w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/Philips350200PF-150x150.jpg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Bruna pyttedv\u00e4rgar en masse! Ett kanadensiskt forskarteam har hittat ett par dussin nya bruna dv\u00e4rgar, en med massan bara 6 ggr Jupiters. Dessutom har de hittat en stj\u00e4rnhop i viken h\u00e4lften av stj\u00e4rnorna \u00e4r just bruna dv\u00e4rgar, &#8220;misslyckade solar&#8221;. Enligt forskarna fr\u00e5n University of Toronto finns egentligen ingen skillnad mellan hur dessa stj\u00e4rnor och t&hellip;&nbsp;<a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/2011\/10\/11\/nr-257-2011\/\" rel=\"bookmark\">L\u00e4s mer &raquo;<span class=\"screen-reader-text\">Nr 257 2011<\/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":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.8 - aioseo.com -->\n\t<meta name=\"description\" content=\"Bruna pyttedv\u00e4rgar en masse! 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Dessutom har de hittat en stj\u00e4rnhop i viken h\u00e4lften av stj\u00e4rnorna \u00e4r just bruna dv\u00e4rgar, &quot;misslyckade solar&quot;. Enligt forskarna fr\u00e5n University of Toronto finns egentligen ingen skillnad mellan hur dessa stj\u00e4rnor och t\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/www.astb.se\/cassiopeiabloggen\/2011\/10\/11\/nr-257-2011\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2011-10-11T21:10:23+02:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2011-10-12T05:09:46+02:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Nr 257 2011 - Cassiopeiabloggen\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Bruna pyttedv\u00e4rgar en masse! Ett kanadensiskt forskarteam har hittat ett par dussin nya bruna dv\u00e4rgar, en med massan bara 6 ggr Jupiters. Dessutom har de hittat en stj\u00e4rnhop i viken h\u00e4lften av stj\u00e4rnorna \u00e4r just bruna dv\u00e4rgar, &quot;misslyckade solar&quot;. 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