“P\u00e5 bilden syns bland annat den i\u00f6gonfallande m\u00f6rka albedoformationen Syrtis Major (det m\u00f6rka parti som sticker ut ner\u00e5t och liknar Sk\u00e5ne). Den noterades redan \u00e5r 1659 p\u00e5 en skiss av Christian Huygens .<\/strong> Det l\u00e4r vara den f\u00f6rsta permanenta struktur som sets p\u00e5 ytan av n\u00e5gon planet.<\/p>\n\n\n\n Bilden tagen fr\u00e5n Malm\u00f6 med min 6-tums refraktor, br\u00e4nnvidd 3500 mm med hj\u00e4lp av barlow.<\/p>\n\n\n\n Jag tog 5000 bilder under 2 minuter med en CMOS f\u00e4rgkamera. De b\u00e4sta 1000 bilderna anv\u00e4ndes sedan i den efterf\u00f6ljande bildbearbetningen.”<\/p>\n\n\n\n Notera att hela ytan inte \u00e4r belyst. Faktum \u00e4r att Mars \u00e4ven visar faser, vilket var ett bevis f\u00f6r att planeten snurrade runt solen. Men det tog tid att klura ut “beviset”, som var sv\u00e5rf\u00e5ngat med de f\u00f6rsta teleskopen. Galileo Galilei <\/strong>l\u00e4r redan 1609-1610 varit inne p\u00e5 sp\u00e5ret, men jag har inte just nu tillg\u00e5ng till relevant k\u00e4llmaterial.<\/p>\n\n\n\n 1 december, tipsar Peter Hemborg<\/strong>, visas premi\u00e4ravsnittet av TV4:s julkalender Kometernas jul:<\/p>\n\n\n\n Info bl a h\u00e4r: https:\/\/www.tv4play.se\/program\/kometernas-jul<\/a><\/p>\n\n\n Mars n\u00e4ra opposition Innan sn\u00f6fallet hade vi Malm\u00f6 ett par fantastiskt fina och klara stj\u00e4rnklara kv\u00e4llar, n\u00e4tter och tidiga morgnar, och Hans Hilderfors passade p\u00e5 att dokumentera Mars innan oppositionen 7 december: “P\u00e5 bilden syns bland annat den i\u00f6gonfallande m\u00f6rka albedoformationen Syrtis Major (det m\u00f6rka parti som sticker ut ner\u00e5t och liknar Sk\u00e5ne). Den noterades… L\u00e4s mer »Nr 93 2022<\/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":[],"_links":{"self":[{"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/92048"}],"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=92048"}],"version-history":[{"count":6,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/92048\/revisions"}],"predecessor-version":[{"id":92058,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/92048\/revisions\/92058"}],"wp:attachment":[{"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/media?parent=92048"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/categories?post=92048"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/tags?post=92048"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"\"](\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2022\/11\/image-6.png\")
<\/a><\/figure>\n\n\n\n“Kometernas jul” drabbar oss p\u00e5 TV4<\/h2>\n\n\n\n
<\/a><\/figure><\/div>","protected":false},"excerpt":{"rendered":"