{"id":22486,"date":"2021-05-10T15:05:36","date_gmt":"2021-05-10T14:05:36","guid":{"rendered":"https:\/\/www.petrhoralek.com\/?p=22486"},"modified":"2021-05-11T19:54:49","modified_gmt":"2021-05-11T18:54:49","slug":"nova-in-cassiopeia-2021","status":"publish","type":"post","link":"https:\/\/www.petrhoralek.com\/?p=22486","title":{"rendered":"Nova in Cassiopeia 2021"},"content":{"rendered":"<div id=\"attachment_22495\" style=\"width: 810px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_11_NovaCas2021_Proc_1500px.png\" data-lbwps-width=\"1500\" data-lbwps-height=\"1000\" data-lbwps-srcsmall=\"http:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_11_NovaCas2021_Proc_1500px-1024x683.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-22495\" class=\"size-large wp-image-22495\" src=\"https:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_11_NovaCas2021_Proc_1500px-800x533.png\" alt=\"Nova in Cassiopeia 2021 - May 11th, 2021\" width=\"800\" height=\"533\" srcset=\"https:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_11_NovaCas2021_Proc_1500px-800x533.png 800w, https:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_11_NovaCas2021_Proc_1500px-300x200.png 300w, https:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_11_NovaCas2021_Proc_1500px-768x512.png 768w, https:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_11_NovaCas2021_Proc_1500px-1024x683.png 1024w, https:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_11_NovaCas2021_Proc_1500px.png 1500w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><p id=\"caption-attachment-22495\" class=\"wp-caption-text\">Nova in Cassiopeia 2021 &#8211; May 11th, 2021<\/p><\/div>\n<p><strong>11 May 2021:<\/strong> The morning sky was clearer than the night before so I tried to capture again the whole Cassiopeia region with the Nova Cas 2021 one more time. The inset of annotated version shows nova just in the center. Used Canon 6D modified, Sigma 50mm, f3.2, ISO 2000, 60x40s from the tripod and <a href=\"https:\/\/global.vixen.co.jp\/en\/product\/35491_7\/\" target=\"_blank\" rel=\"noopener\">Vixen U mount<\/a>.<\/p>\n<div id=\"attachment_22496\" style=\"width: 810px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_11_NovaCas2021_Proc_Popis_1500px.png\" data-lbwps-width=\"1500\" data-lbwps-height=\"1000\" data-lbwps-srcsmall=\"http:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_11_NovaCas2021_Proc_Popis_1500px-1024x683.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-22496\" class=\"size-large wp-image-22496\" src=\"https:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_11_NovaCas2021_Proc_Popis_1500px-800x533.png\" alt=\"Nova in Cassiopeia 2021 - May 11th, 2021 (annotated)\" width=\"800\" height=\"533\" srcset=\"https:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_11_NovaCas2021_Proc_Popis_1500px-800x533.png 800w, https:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_11_NovaCas2021_Proc_Popis_1500px-300x200.png 300w, https:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_11_NovaCas2021_Proc_Popis_1500px-768x512.png 768w, https:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_11_NovaCas2021_Proc_Popis_1500px-1024x683.png 1024w, https:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_11_NovaCas2021_Proc_Popis_1500px.png 1500w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><p id=\"caption-attachment-22496\" class=\"wp-caption-text\">Nova in Cassiopeia 2021 &#8211; May 11th, 2021 (annotated)<\/p><\/div>\n<p><strong>10 May 2021:<\/strong> Recently, the night sky offers a pretty unique phenomenon \u2013 in the Cassiopeia constellation, a bright nova can be visible on the threshold of naked-eyes visibility away from the cities. Nova brightened first time during March, reaching about 7th magnitude. Now, it gets even to the 5th magnitude. The <a href=\"https:\/\/skyandtelescope.org\/astronomy-news\/observing-news\/bright-nova-erupts-in-cassiopeia\/\" target=\"_blank\" rel=\"noopener\">Nova Cassiopeia 2021<\/a>, also as V1405 Cas, <a href=\"http:\/\/var2.astro.cz\/czev.php?id=3217\" target=\"_blank\" rel=\"noopener\">had been discovered<\/a> by Czech astronomer <a href=\"https:\/\/www.aavso.org\/vsx\/index.php?view=detail.top&amp;oid=2216132\" target=\"_blank\" rel=\"noopener\">Zbyn\u011bk Henzl<\/a> even before its flare. I was lucky to spot the nova just before the daybreak on May 10th, 2021, while cirrus clouds were passing in the view. Still, good enough to capture the constellation with its \u201cnew star\u201d, marked by the lines in the image. The inset shows nova just in the center. Used Canon 6D modified, Sigma 50mm, f3.2, ISO 2000, 20x40s from tripod and <a href=\"https:\/\/global.vixen.co.jp\/en\/product\/35491_7\/\" target=\"_blank\" rel=\"noopener\">Vixen U mount<\/a>.<\/p>\n<div id=\"attachment_22490\" style=\"width: 810px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_10_Nova_Cass2021_Popis-_1500px.png\" data-lbwps-width=\"1500\" data-lbwps-height=\"1000\" data-lbwps-srcsmall=\"http:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_10_Nova_Cass2021_Popis-_1500px-1024x683.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-22490\" class=\"size-large wp-image-22490\" src=\"https:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_10_Nova_Cass2021_Popis-_1500px-800x533.png\" alt=\"Nova in Cassiopeia 2021\" width=\"800\" height=\"533\" srcset=\"https:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_10_Nova_Cass2021_Popis-_1500px-800x533.png 800w, https:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_10_Nova_Cass2021_Popis-_1500px-300x200.png 300w, https:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_10_Nova_Cass2021_Popis-_1500px-768x512.png 768w, https:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_10_Nova_Cass2021_Popis-_1500px-1024x683.png 1024w, https:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_10_Nova_Cass2021_Popis-_1500px.png 1500w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><p id=\"caption-attachment-22490\" class=\"wp-caption-text\">Nova in Cassiopeia 2021 &#8211; May 10th, 2021<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>11 May 2021: The morning sky was clearer than the night before so I tried to capture again the whole Cassiopeia region with the Nova Cas 2021 one more time. The inset of annotated version shows nova just in the center. Used Canon 6D modified, Sigma 50mm, f3.2, ISO 2000, 60x40s from the tripod and&hellip; <br \/> <a class=\"read-more\" href=\"https:\/\/www.petrhoralek.com\/?p=22486\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":22496,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-22486","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-milky-way"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.8 - aioseo.com -->\n\t<meta name=\"description\" content=\"Nova in Cassiopeia 2021 - May 11th, 2021 11 May 2021: The morning sky was clearer than the night before so I tried to capture again the whole Cassiopeia region with the Nova Cas 2021 one more time. 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The inset of annotated version shows nova just in the center. Used Canon 6D modified, Sigma 50mm,","og:url":"https:\/\/www.petrhoralek.com\/?p=22486","og:image":"https:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_11_NovaCas2021_Proc_Popis_1500px.png","og:image:secure_url":"https:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_11_NovaCas2021_Proc_Popis_1500px.png","og:image:width":1500,"og:image:height":1000,"article:published_time":"2021-05-10T14:05:36+00:00","article:modified_time":"2021-05-11T18:54:49+00:00","article:publisher":"https:\/\/www.facebook.com\/PetrHoralekPhoto\/","twitter:card":"summary","twitter:title":"Nova in Cassiopeia 2021 - Petr Hor\u00e1lek Photography","twitter:description":"Nova in Cassiopeia 2021 - May 11th, 2021 11 May 2021: The morning sky was clearer than the night before so I tried to capture again the whole Cassiopeia region with the Nova Cas 2021 one more time. The inset of annotated version shows nova just in the center. Used Canon 6D modified, Sigma 50mm,","twitter:image":"https:\/\/www.petrhoralek.com\/wp-content\/uploads\/2021\/05\/2021_05_11_NovaCas2021_Proc_Popis_1500px.png"},"aioseo_meta_data":{"post_id":"22486","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"BlogPosting","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"breadcrumb_settings":null,"limit_modified_date":false,"ai":null,"created":"2022-09-08 10:24:24","updated":"2022-11-21 18:17:44","seo_analyzer_scan_date":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/www.petrhoralek.com\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/www.petrhoralek.com\/?cat=1\" title=\"The Milky Way and Nightscapes\">The Milky Way and Nightscapes<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tNova in Cassiopeia 2021\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/www.petrhoralek.com"},{"label":"The Milky Way and Nightscapes","link":"https:\/\/www.petrhoralek.com\/?cat=1"},{"label":"Nova in Cassiopeia 2021","link":"https:\/\/www.petrhoralek.com\/?p=22486"}],"_links":{"self":[{"href":"https:\/\/www.petrhoralek.com\/index.php?rest_route=\/wp\/v2\/posts\/22486","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.petrhoralek.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.petrhoralek.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.petrhoralek.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.petrhoralek.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=22486"}],"version-history":[{"count":0,"href":"https:\/\/www.petrhoralek.com\/index.php?rest_route=\/wp\/v2\/posts\/22486\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.petrhoralek.com\/index.php?rest_route=\/wp\/v2\/media\/22496"}],"wp:attachment":[{"href":"https:\/\/www.petrhoralek.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=22486"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.petrhoralek.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=22486"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.petrhoralek.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=22486"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}