{"id":2758,"date":"2018-01-24T09:00:26","date_gmt":"2018-01-24T13:00:26","guid":{"rendered":"https:\/\/orbitalhub.com\/?p=2758"},"modified":"2018-01-22T10:29:16","modified_gmt":"2018-01-22T14:29:16","slug":"supernovas-light-echo","status":"publish","type":"post","link":"https:\/\/orbitalhub.com\/?p=2758","title":{"rendered":"Supernova&#8217;s Light Echo"},"content":{"rendered":"<div style=\"float: left; padding-right: 30px;\">\n<p class=\"MsoNormal\" style=\"margin: 5px;\">&nbsp;<\/p>\n<p class=\"MsoNormal\" style=\"margin: 5px;\">\n<iframe loading=\"lazy\" width=\"580\" height=\"326\" src=\"https:\/\/www.youtube.com\/embed\/tzSAoW6fS6c\" frameborder=\"0\" allow=\"autoplay; encrypted-media\" allowfullscreen><\/iframe>\n<\/p>\n<p class=\"MsoNormal\" style=\"margin: 5px;\">&nbsp;<\/p>\n<p>NASA dixit:<\/p>\n<p>&#8220;Light from a supernova explosion in the nearby starburst galaxy M82 is reverberating off a huge dust cloud in interstellar space. The supernova, called SN 2014J, occurred at the upper right of M82, and is marked by an &#8220;X.&#8221; The supernova was discovered on January 21, 2014.<\/p>\n<p>The inset images at top reveal an expanding shell of light from the stellar explosion sweeping through interstellar space, called a &#8220;light echo.&#8221; The images were taken 10 months to nearly two years after the violent event (November 6, 2014 to October 12, 2016). The light is bouncing off a giant dust cloud that extends 300 to 1,600 light-years from the supernova and is being reflected toward Earth.<\/p>\n<p>SN 2014J is classified as a Type Ia supernova and is the closest such blast in at least four decades. A Type Ia supernova occurs in a binary star system consisting of a burned-out white dwarf and a companion star. The white dwarf explodes after the companion dumps too much material onto it. The image of M82 reveals a bright blue disk, webs of shredded clouds, and fiery-looking plumes of glowing hydrogen blasting out of its central regions.<\/p>\n<p>Close encounters with its larger neighbor, the spiral galaxy M81, is compressing gas in M82 and stoking the birth of multiple star clusters. Some of these stars live for only a short time and die in cataclysmic supernova blasts, as shown by SN 2014J.<\/p>\n<p>Located 11.4 million light-years away, M82 appears high in the northern spring sky in the direction of the constellation Ursa Major, the Great Bear. It is also called the &#8220;Cigar Galaxy&#8221; because of the elliptical shape produced by the oblique tilt of its starry disk relative to our line of sight.&#8221;<\/p>\n<p>Music credit: &#8220;Little Effort&#8221; by Christopher Franke [BMI]; Killer Tracks [BMI]; Killer Tracks Production Music<\/p>\n<p>Video credit: NASA&#8217;s Goddard Space Flight Center\/Katrina Jackson<\/p>\n<p class=\"MsoNormal\" style=\"margin: 5px;\">&nbsp;<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Over a period of two and a half years, NASA&#8217;s Hubble Space Telescope observed the &#8220;light echo&#8221; of supernova SN 2014J in galaxy M82, located 11.4 million light-years away.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[391,111,463],"tags":[],"class_list":["post-2758","post","type-post","status-publish","format-standard","hentry","category-astronomy","category-space-telescopes","category-videos"],"_links":{"self":[{"href":"https:\/\/orbitalhub.com\/index.php?rest_route=\/wp\/v2\/posts\/2758","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/orbitalhub.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/orbitalhub.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/orbitalhub.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/orbitalhub.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2758"}],"version-history":[{"count":1,"href":"https:\/\/orbitalhub.com\/index.php?rest_route=\/wp\/v2\/posts\/2758\/revisions"}],"predecessor-version":[{"id":2759,"href":"https:\/\/orbitalhub.com\/index.php?rest_route=\/wp\/v2\/posts\/2758\/revisions\/2759"}],"wp:attachment":[{"href":"https:\/\/orbitalhub.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2758"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/orbitalhub.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2758"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/orbitalhub.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2758"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}