{"id":92522,"date":"2023-01-28T11:40:59","date_gmt":"2023-01-28T10:40:59","guid":{"rendered":"https:\/\/www.astb.se\/cassiopeiabloggen\/?p=92522"},"modified":"2023-01-28T11:41:15","modified_gmt":"2023-01-28T10:41:15","slug":"nr-8-2023","status":"publish","type":"post","link":"https:\/\/www.astb.se\/cassiopeiabloggen\/2023\/01\/28\/nr-8-2023\/","title":{"rendered":"Nr 8 2023"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Kometen ig\u00e5r morse<\/h2>\n\n\n\n<p>F\u00f6r ett dygn sedan, ig\u00e5r morse, s\u00e4krade <strong>Hans Hilderfors<\/strong> &#8220;ZTF-kometens&#8221; framfart \u00f6ver v\u00e5ra huvuden:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2023\/01\/C_2022-E3-ZTF_final-scaled.jpg\"><img decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2023\/01\/C_2022-E3-ZTF_final-1024x683.jpg\" alt=\"\" class=\"wp-image-92524\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2023\/01\/C_2022-E3-ZTF_final-1024x683.jpg 1024w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2023\/01\/C_2022-E3-ZTF_final-300x200.jpg 300w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2023\/01\/C_2022-E3-ZTF_final-768x512.jpg 768w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2023\/01\/C_2022-E3-ZTF_final-1536x1024.jpg 1536w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2023\/01\/C_2022-E3-ZTF_final-2048x1366.jpg 2048w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2023\/01\/C_2022-E3-ZTF_final-930x620.jpg 930w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure><\/div>\n\n\n<p>Fr\u00e5n Hans logg:<\/p>\n\n\n\n<p>&#8220;H\u00e4r kommer \u00e4nnu en kometbild, C\/2022 E3 (ZTF), nu dokumenterad fr\u00e5n Malm\u00f6 den 27\/1 mellan kl 02.00 \u2013 06.00.<\/p>\n\n\n\n<p>Bilden tagen genom RGB filter, exponering 20 x 3 min vardera med f\u00f6ljning p\u00e5 kometen samt 20 x 1 min vardera med f\u00f6ljning p\u00e5 stj\u00e4rnorna, summa 4h.<\/p>\n\n\n\n<p>Bildf\u00e4ltet \u00e4r ganska stort p\u00e5 198\u2019 x 132\u2019 med N^W&gt; och man ser hur den svaga jonsvansen \u00e4r rej\u00e4lt l\u00e5ng ut mot h\u00f6ger i bilden.<\/p>\n\n\n\n<p>Kometens relativa egenr\u00f6relse var 11,6\u201d\/min. Bilden motsvarar kometens l\u00e4ge cirka klockan 05.00 p\u00e5 morgonen.<\/p>\n\n\n\n<p>Notera att det \u00e4ven bildats en s\u00e5 kallad \u201danti-svans\u201d i riktning mot solen!<\/p>\n\n\n\n<p>Se mer t ex h\u00e4r:&nbsp;<a href=\"https:\/\/www.sott.net\/article\/476542\">https:\/\/www.sott.net\/article\/476542<\/a><\/p>\n\n\n\n<p>Fototeleskopet var en refraktor 130 mm f\/4,5 kopplad till en monokrom CMOS kamera med filterhjul.<\/p>\n\n\n\n<p>Bilden ligger \u00e4ven p\u00e5 ett nattmoln n\u00e4ra oss.&#8221;<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Youtubefilm om ZTF-\u00e5ret som gick<\/h2>\n\n\n\n<p>Tack till prof <strong>Jesper Sollerman<\/strong> som tipsar om denna Youtube-film, som visar vad Zwicky Transient Facility (Palomar Mountains, Californien) presterade under fjor\u00e5ret INKLUSIVE uppt\u00e4ckten av v\u00e5r hyperaktuella vinterkomet:<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"nv-iframe-embed\"><iframe title=\"2022 End of the Year Highlights for the Zwicky Transient Facility\" width=\"1200\" height=\"675\" src=\"https:\/\/www.youtube.com\/embed\/jEu1ZCMip4M?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe><\/div>\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Kometen ig\u00e5r morse F\u00f6r ett dygn sedan, ig\u00e5r morse, s\u00e4krade Hans Hilderfors &#8220;ZTF-kometens&#8221; framfart \u00f6ver v\u00e5ra huvuden: Fr\u00e5n Hans logg: &#8220;H\u00e4r kommer \u00e4nnu en kometbild, C\/2022 E3 (ZTF), nu dokumenterad fr\u00e5n Malm\u00f6 den 27\/1 mellan kl 02.00 \u2013 06.00. Bilden tagen genom RGB filter, exponering 20 x 3 min vardera med f\u00f6ljning p\u00e5 kometen samt&hellip;&nbsp;<a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/2023\/01\/28\/nr-8-2023\/\" rel=\"bookmark\">L\u00e4s mer &raquo;<span class=\"screen-reader-text\">Nr 8 2023<\/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\/92522"}],"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=92522"}],"version-history":[{"count":5,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/92522\/revisions"}],"predecessor-version":[{"id":92528,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/92522\/revisions\/92528"}],"wp:attachment":[{"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/media?parent=92522"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/categories?post=92522"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/tags?post=92522"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}