{"id":22588,"date":"2011-10-27T14:41:41","date_gmt":"2011-10-27T13:41:41","guid":{"rendered":"http:\/\/www.astb.se\/cassiopeiabloggen\/?p=22588"},"modified":"2011-10-27T21:28:30","modified_gmt":"2011-10-27T20:28:30","slug":"nr-272-2011","status":"publish","type":"post","link":"https:\/\/www.astb.se\/cassiopeiabloggen\/2011\/10\/27\/nr-272-2011\/","title":{"rendered":"Nr 272 2011"},"content":{"rendered":"<h2>Eris VS Pluto &#8211; vilken \u00e4r st\u00f6rst?<\/h2>\n<p>Senaste nytt fr\u00e5n <a href=\"http:\/\/www.eso.org\/public\/images\/eso1142\">den transneptunianska sf\u00e4ren f\u00f6rmedlas av veckans pressmess fr\u00e5n ESO<\/a>, som ber\u00e4ttar att dv\u00e4rgplaneten Eris storlek nu uppm\u00e4tts genom en stj\u00e4rnockultation och det visar sig att himlakroppen storleksm\u00e4ssigt \u00e4r en tvilling till Pluto.<\/p>\n<p><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/eso1142a.jpg\"><img decoding=\"async\" class=\"alignleft size-large wp-image-22596\" title=\"Eris enligt rymdkonstn\u00e4rens uppfattning. Ill: ESO\/L Cal\u00e7ada\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/eso1142a-1024x682.jpg\" alt=\"\" width=\"450\" height=\"299\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/eso1142a-1024x682.jpg 1024w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/eso1142a-300x199.jpg 300w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/eso1142a.jpg 1280w\" sizes=\"(max-width: 450px) 100vw, 450px\" \/><\/a>Observationen skedde via det fj\u00e4rrstyrda belgiska TRAPPIST-teleskopet vid ESO:s La Silla-observatorium i Chile (kontrollrummet finns i Liege!)..<\/p>\n<p>Trappist \u00e4r ett namn vi k\u00e4nner igen fr\u00e5n god belgisk \u00f6l, men h\u00e4r st\u00e5r det f\u00f6r TRAnsiting Planets and PlanetesImals Small Telescope.<\/p>\n<p><strong>* Observationerna visar att Eris <\/strong>med diametern 2326 km +-12 km \u00e4r i det n\u00e4rmaste en identisk tvilling till Pluto.<\/p>\n<p><strong>* Omloppsbanan f\u00f6r Eris m\u00e5ne<\/strong> Dysnomia har anv\u00e4nts f\u00f6r att uppskatta Eris massa, som visar sig vara 27 procent st\u00f6rre \u00e4n Plutos massa Massan och diametern ger i sin tur en uppskattning av Eris densitet p\u00e5 2,52 gram per kubikcentimeter.<\/p>\n<p><strong>* Eris f\u00f6refaller dessutom ha<\/strong> en h\u00f6greflekterande yta. Det pekar p\u00e5 att dv\u00e4rgplaneten \u00e4r helt t\u00e4ckt av ett tunt islager, antagligen en frusen atmosf\u00e4r.<\/p>\n<p><strong>* Eris befinner sig f\u00f6r tillf\u00e4llet<\/strong> tre g\u00e5nger l\u00e4ngre ut fr\u00e5n solen \u00e4n Pluto.<\/p>\n<p>Forskningsresultaten publiceras i dagens utg\u00e5va av\u00a0 i tidskriften <em>Nature<\/em>.<\/p>\n<h2>Teleskop till salu<\/h2>\n<p><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/ACF_80-Kopia_Thumb.jpg\"><img decoding=\"async\" width=\"225\" height=\"300\" class=\"alignleft size-medium wp-image-22602\" style=\"width: 92px; height: 122px;\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/ACF_80-Kopia_Thumb-225x300.jpg\" alt=\"\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/ACF_80-Kopia_Thumb-225x300.jpg 225w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/ACF_80-Kopia_Thumb.jpg 250w\" sizes=\"(max-width: 225px) 100vw, 225px\" \/><\/a>Det kom en f\u00f6rfr\u00e5gan fr\u00e5n <strong>Tony \u00c5str\u00f6m<\/strong>, Gamla Alunbruket, Br\u00f6sarp.<\/p>\n<p>&#8211; Skulpt\u00f6r<strong> Evert Forn\u00e4s<\/strong> (<a href=\"https:\/\/webmail.telia.com\/cp\/ps\/Mail\/ExternalURLProxy?d=pne.telia.com&amp;u=u48702769&amp;url=http:\/\/evertfornas.se&amp;urlHash=-5.464370744406472E272\" target=\"_BLANK\">http:\/\/evertfornas.se<\/a>) gick bort i b\u00f6rjan av \u00e5ret och jag s\u00e4ljer f\u00f6r \u00e4nkans r\u00e4kning ett helt oanv\u00e4nt Meade 8tum LX200 ACF med GPS .<\/p>\n<p>&#8211; Teleskopet finns i Ystad och mer info om teleskopet finns p\u00e5: <a href=\"https:\/\/webmail.telia.com\/cp\/ps\/Mail\/ExternalURLProxy?d=pne.telia.com&amp;u=u48702769&amp;url=http:\/\/www.astrosweden.se\/meade-8tum-lx200-acf\/18647-0&amp;urlHash=1.2846972822007572E45\" target=\"_BLANK\">http:\/\/www.astrosweden.se\/meade-8tum-lx200-acf\/18647-0<\/a><\/p>\n<p>Nypriset l\u00e4r p\u00e5 36 500 kr.<\/p>\n<p>Tonys mailadress:<\/p>\n<p>contact@tonyastrom.com<\/p>\n<h2>\u00c4r vi \u00f6verens?<\/h2>\n<p>Om jag \u00e4r p\u00e5 Jodrell Bank och f\u00e5r in signaler som pekar p\u00e5 att det sitter en pianist vid en flygel p\u00e5 en exoplanet\u00a0 och spelar<strong> Franz Schubets <\/strong> B-dursonat &#8211; \u00e4r vi d\u00e5 \u00f6verens om att det finns intelligent liv i universum?<\/p>\n<h2>Komplexa organiska f\u00f6reningar i kosmos<\/h2>\n<p>Fr\u00e5n<a href=\"http:\/\/www.hku.hk\/press\/news_detail_6633.html\"> universitetet i Hong Kong kommer en rapport som visar p\u00e5 f\u00f6rekomsten av komplexa organiska f\u00f6reningar i universum<\/a>. Till de tidigare uppt\u00e4ckterna av komplicerade molekyler kan nu ocks\u00e5 l\u00e4ggas komplexa organiska f\u00f6reningar (som j\u00e4ttekedjorna i petroleum, olja, kol) som syntetiseras i kosmos vakuum utan att f\u00f6rst passera ruta 1 (= liv).<\/p>\n<p>Stj\u00e4rnor fungerar som rena &#8220;molekylfabriker&#8221;, s\u00e4ger en av forskarna. Dessutom producerar fabrikerna dessa f\u00f6reningar under extremt kort tid, p\u00e5 kanske bara n\u00e5gra veckor.<\/p>\n<p>Likheter mellan best\u00e5ndsdelarna i dessa moln och t ex meteoriter kan ocks\u00e5 sl\u00e5s fast.<\/p>\n<div id=\"story\" style=\"padding-bottom: 10px;\"><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/111026143721-large3.jpg\"><img decoding=\"async\" class=\"aligncenter size-medium wp-image-22616\" title=\"H\u00e4r har ett spektrum lagts ovanp\u00e5 en HST-bild av Orionnulosan, som \u00e4r rik p\u00e5 komplicerade organiska f\u00f6reningar. Foto:University of Hong Kong,NASA, C.R. O'Dell and S.K. Wong (Rice University)\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/111026143721-large3-278x300.jpg\" alt=\"\" width=\"278\" height=\"300\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/111026143721-large3-278x300.jpg 278w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/111026143721-large3.jpg 800w\" sizes=\"(max-width: 278px) 100vw, 278px\" \/><\/a><\/div>\n<h2>D\u00f6ende solar och deras planeter<\/h2>\n<p>N\u00e4r astronomerna <a href=\"http:\/\/www.physorg.com\/news\/2011-10-planets-mystery-solar.html\">studerar stj\u00e4rnor som HD 240237, BD +48 738,och\u00a0 HD 96127<\/a> ser de i princip tre d\u00f6ende solar med planeter. Genom att utforska dessa system, f\u00e5r vi en bild av vad som v\u00e4ntar oss sj\u00e4lva och v\u00e5r egen sol om kanske fyra-fem miljarder \u00e5r, d\u00e5 solen bl\u00e5ser upp som en r\u00f6d j\u00e4ttestj\u00e4rna och slukar de inre planeterna.<\/p>\n<p>Kring en av stj\u00e4rnorna snurrar dessutom sannolikt en brun dv\u00e4rg, ett mellanting mellan en gasrik j\u00e4tteplanet och en pyttesol.<\/p>\n<h2>Snart \u00e4r det fredag&#8230;<\/h2>\n<p>.. och en ny week-end men det hindrar inte W-bloggen fr\u00e5n att jaga astronomiska nyheter. Vi k\u00f6r med samma slogan som Paramounts gamla journalfilmer:<\/p>\n<p>Vi ser och h\u00f6r allt!<\/p>\n<p><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/to-be-continued-pp4.jpg\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-22607\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/to-be-continued-pp4.jpg\" alt=\"\" width=\"354\" height=\"256\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/to-be-continued-pp4.jpg 354w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2011\/10\/to-be-continued-pp4-300x216.jpg 300w\" sizes=\"(max-width: 354px) 100vw, 354px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Eris VS Pluto &#8211; vilken \u00e4r st\u00f6rst? Senaste nytt fr\u00e5n den transneptunianska sf\u00e4ren f\u00f6rmedlas av veckans pressmess fr\u00e5n ESO, som ber\u00e4ttar att dv\u00e4rgplaneten Eris storlek nu uppm\u00e4tts genom en stj\u00e4rnockultation och det visar sig att himlakroppen storleksm\u00e4ssigt \u00e4r en tvilling till Pluto. Observationen skedde via det fj\u00e4rrstyrda belgiska TRAPPIST-teleskopet vid ESO:s La Silla-observatorium i Chile&hellip;&nbsp;<a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/2011\/10\/27\/nr-272-2011\/\" rel=\"bookmark\">L\u00e4s mer &raquo;<span class=\"screen-reader-text\">Nr 272 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=\"Eris VS Pluto - vilken \u00e4r st\u00f6rst? 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Senaste nytt fr\\u00e5n den transneptunianska sf\\u00e4ren f\\u00f6rmedlas av veckans pressmess fr\\u00e5n ESO, som ber\\u00e4ttar att dv\\u00e4rgplaneten Eris storlek nu uppm\\u00e4tts genom en stj\\u00e4rnockultation och det visar sig att himlakroppen storleksm\\u00e4ssigt \\u00e4r en tvilling till Pluto. 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