{"id":86979,"date":"2021-01-25T11:15:22","date_gmt":"2021-01-25T10:15:22","guid":{"rendered":"http:\/\/www.astb.se\/cassiopeiabloggen\/?p=86979"},"modified":"2021-01-25T11:15:26","modified_gmt":"2021-01-25T10:15:26","slug":"nr-5-2021","status":"publish","type":"post","link":"https:\/\/www.astb.se\/cassiopeiabloggen\/2021\/01\/25\/nr-5-2021\/","title":{"rendered":"Nr 5 2021"},"content":{"rendered":"\n

 <\/p>\n\n\n\n

Orionnebulosan \u00f6ver Krankesj\u00f6n<\/h2>\n\n\n\n

V\u00e5r v\u00e4gastronomigrupp under ledning av Filip J\u00f6nsson<\/strong> har kommit ig\u00e5ng. Sj\u00e4lv tog han denna f\u00f6rn\u00e4mliga bild av M42 och “The running man”:<\/p>\n\n\n

\"\"<\/a><\/p>\n\n\n

Foto: Filip J\u00f6nsson. “Tagen n\u00e4ra Krankesj\u00f6n med v\u00e4gastronomigruppen, en iskall kv\u00e4ll. Orionnebulosan M42. 40 x 45 sekunders lights 13 darks50 bias”<\/em><\/p>\n\n\n\n

Norrsken och stj\u00e4rnsp\u00e5r<\/h2>\n\n\n\n

Fr\u00e5n Viktor Stubbf\u00e4lt,<\/strong> Uppsala, kommer denna rapport via Christian Vestergaard:<\/strong><\/p>\n\n\n\n

Ett s\u00e4tt att illustrera jordens rotation, \u00e4r att fotografera hur stj\u00e4rnhimlen till synes r\u00f6r sig, l\u00e4ngs med tiden, fr\u00e5n v\u00e5rt perspektiv. Etthundrafemtio bilder med tio sekunders exponeringstid \u201dstackades\u201d ihop. Detta i programmet StarStax, som just skapar stj\u00e4rnsp\u00e5ren.
En l\u00e4ngre treminuters exponering togs ocks\u00e5. Detta f\u00f6r en mer detaljrik f\u00f6rgrund, som sedan lades ovanp\u00e5 i programmet PhotoShop. Vid detta tillf\u00e4lle hade jag dessutom turen att f\u00e5 med norrsken i bilderna, som lades till i den slutgiltiga bilden (p\u00e5 samma s\u00e4tt i PhotoShop.)<\/p>\n\n\n\n

Fotograferat i L\u00e5ngbacka\/Skellefte\u00e5 med en Canon EOS 550E med en 18-35 startlins.<\/p>\n\n\n

\"\"<\/a><\/p>\n\n\n

En bonusbild fr\u00e5n samma tillf\u00e4lle:<\/p>\n\n\n

\"\"<\/a><\/p>\n\n\n

Lundmark bes\u00f6kte Vatikan-observatoriet<\/h2>\n\n\n\n

Christian Verstergaard<\/strong> har p\u00e5 Vatikanobservatoriets facebook<\/a> hittat en ber\u00e4ttelse om Knut Lundmark<\/strong> och Sten Askl\u00f6fs<\/strong> bes\u00f6k 1924 p\u00e5 observatoriet, d\u00e4r vid denna tid ber\u00f6mde Fader Hagen <\/strong>verkade.<\/p>\n\n\n

\"\"<\/a><\/p>\n\n\n

En sorts brytpunkt var v\u00e4l att Fader Hagen tyckte sig se saker p\u00e5 himlavalvet – visuellt – som Lundmark och kolleger aldrig fotografiskt kunde bekr\u00e4fta med hj\u00e4lp av de amerikanska bamseteleskopen. Fader Hagens observationer ses numera som optiska felk\u00e4llor. \u00d6gat lj\u00f6g! <\/p>\n\n\n\n

Fader Hagen aka Johann (John) Georg Hagen<\/strong> levde \u00e5ren 1863-1930. <\/p>\n","protected":false},"excerpt":{"rendered":"

  Orionnebulosan \u00f6ver Krankesj\u00f6n V\u00e5r v\u00e4gastronomigrupp under ledning av Filip J\u00f6nsson har kommit ig\u00e5ng. Sj\u00e4lv tog han denna f\u00f6rn\u00e4mliga bild av M42 och “The running man”: Foto: Filip J\u00f6nsson. “Tagen n\u00e4ra Krankesj\u00f6n med v\u00e4gastronomigruppen, en iskall kv\u00e4ll. Orionnebulosan M42. 40 x 45 sekunders lights 13 darks50 bias” Norrsken och stj\u00e4rnsp\u00e5r Fr\u00e5n Viktor Stubbf\u00e4lt, Uppsala, kommer denna rapport via Christian… L\u00e4s mer »Nr 5 2021<\/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\/86979"}],"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=86979"}],"version-history":[{"count":11,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/86979\/revisions"}],"predecessor-version":[{"id":86994,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/86979\/revisions\/86994"}],"wp:attachment":[{"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/media?parent=86979"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/categories?post=86979"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/tags?post=86979"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}