{"id":96473,"date":"2024-10-06T11:16:48","date_gmt":"2024-10-06T09:16:48","guid":{"rendered":"https:\/\/www.astb.se\/cassiopeiabloggen\/?p=96473"},"modified":"2024-10-06T11:16:48","modified_gmt":"2024-10-06T09:16:48","slug":"nr-62-2024","status":"publish","type":"post","link":"https:\/\/www.astb.se\/cassiopeiabloggen\/2024\/10\/06\/nr-62-2024\/","title":{"rendered":"Nr 62 2024"},"content":{"rendered":"\r\n\r\n\r\n\r\n\r\n<p><strong><span style=\"font-size: 24pt;\">Tv\u00e5 g\u00e5nger Barnard<\/span><\/strong><\/p>\r\n\r\n\r\n\r\n<p>En bild fr\u00e5n <strong>Hans Hilderfors<\/strong> \u00f6ver delar av nebulositeten i stj\u00e4rnbilden Svanen centrerad \u00f6ver Wolf-Rayet (WR) stj\u00e4rnan 134 och dess synbara bubbla av bl\u00e5aktigt ljus fr\u00e5n joniserat syre (OIII). Bubblan bl\u00e5ses upp av den snabba vinden och intensiva str\u00e5lningen fr\u00e5n stj\u00e4rnan.<\/p>\r\n\r\n\r\n\r\n<p>WR 134 \u00e4r den ljusstarka gula stj\u00e4rnan som ligger centralt i bubblan.<\/p>\r\n\r\n\r\n\r\n<p>Ner mot v\u00e4nster i bilden ses en del m\u00f6rk nebulositet varav mest framtr\u00e4dande och k\u00e4nda \u00e4r den l\u00e5ngsmala, ormlika Barnard 147.<\/p>\r\n\r\n\r\n\r\n<p>Datum: 2024-10-03<\/p>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2024\/10\/WR-134--scaled.jpg\"><img decoding=\"async\" width=\"1024\" height=\"768\" class=\"wp-image-96474\" src=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2024\/10\/WR-134--1024x768.jpg\" alt=\"\" srcset=\"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2024\/10\/WR-134--1024x768.jpg 1024w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2024\/10\/WR-134--300x225.jpg 300w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2024\/10\/WR-134--768x576.jpg 768w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2024\/10\/WR-134--1536x1152.jpg 1536w, https:\/\/www.astb.se\/cassiopeiabloggen\/wp-content\/uploads\/2024\/10\/WR-134--2048x1536.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\r\n\r\n\r\n\r\n<p>Bildf\u00e4lt cirka 3,0\u00b0 x 2,2\u00b0 och roterad 90\u00b0 med norr mot h\u00f6ger.<\/p>\r\n\r\n\r\n\r\n<p>Bilden \u00e4r tagen med hj\u00e4lp av tv\u00e5 smalbandsfilter H\u03b1 och OIII.<\/p>\r\n\r\n\r\n\r\n<p>Optik: 13 cm refraktor f\/4,5. Kamera: Kyld CMOS med filterhjul.<\/p>\r\n\r\n\r\n\r\n<p>Exponering: H\u03b1 16 x 5 min\u00a0\u00a0\u00a0 OIII 32 x 5 min.<\/p>\r\n\r\n\r\n\r\n<p>Plats: Malm\u00f6<\/p>\r\n<p><strong><span style=\"font-size: 24pt;\">Barnards stj\u00e4rna hyser planeter<\/span><\/strong><\/p>\r\n<p>\u00c4ven proffsastronoerna fascineras av<strong> E E Barnards<\/strong> m\u00e5nga objekt. Barnards stj\u00e4rna, som den kallas, \u00e4r en n\u00e4rbel\u00e4gen ljussvag snabbl\u00f6pare p\u00e5 himlavalvet (drygt 10 b\u00e5gsekunder per \u00e5r) och\u00a0 har nyligen avsl\u00f6jats hysa planeter.<\/p>\r\n<p>Misstankar har funnits tidigare men nu \u00e4r uppt\u00e4ckten bekr\u00e4ftad med hj\u00e4lp av Europeiska Sydobservatoriets Very Large Telescope (ESO:s VLT). P\u00e5 den nyuppt\u00e4ckta exoplaneten, som \u00e4r minst h\u00e4lften s\u00e5 massiv som Venus, \u00e4r ett \u00e5r drygt tre jorddagar l\u00e5ngt. Forskargruppens observationer antyder ocks\u00e5 att det finns ytterligare tre exoplanetkandidater i banor runt stj\u00e4rnan.\u00a0<\/p>\r\n<p>Youtube-fimen fr\u00e5n ESO.<\/p>\r\n<p><div class=\"nv-iframe-embed\"><iframe title=\"New planet discovered orbiting closest single star to our Sun\" width=\"1200\" height=\"675\" src=\"https:\/\/www.youtube.com\/embed\/gaE_FDLXAz4?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div><\/p>\r\n","protected":false},"excerpt":{"rendered":"<p>Tv\u00e5 g\u00e5nger Barnard En bild fr\u00e5n Hans Hilderfors \u00f6ver delar av nebulositeten i stj\u00e4rnbilden Svanen centrerad \u00f6ver Wolf-Rayet (WR) stj\u00e4rnan 134 och dess synbara bubbla av bl\u00e5aktigt ljus fr\u00e5n joniserat syre (OIII). Bubblan bl\u00e5ses upp av den snabba vinden och intensiva str\u00e5lningen fr\u00e5n stj\u00e4rnan. WR 134 \u00e4r den ljusstarka gula stj\u00e4rnan som ligger centralt i&hellip;&nbsp;<a href=\"https:\/\/www.astb.se\/cassiopeiabloggen\/2024\/10\/06\/nr-62-2024\/\" rel=\"bookmark\">L\u00e4s mer &raquo;<span class=\"screen-reader-text\">Nr 62 2024<\/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":"off","neve_meta_content_width":70,"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\/96473"}],"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=96473"}],"version-history":[{"count":9,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/96473\/revisions"}],"predecessor-version":[{"id":96483,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/96473\/revisions\/96483"}],"wp:attachment":[{"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/media?parent=96473"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/categories?post=96473"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/tags?post=96473"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}