{"id":4802,"date":"2011-02-25T14:30:46","date_gmt":"2011-02-25T22:30:46","guid":{"rendered":"http:\/\/www.todayifoundout.com\/?p=4802"},"modified":"2011-11-08T22:58:37","modified_gmt":"2011-11-09T06:58:37","slug":"what-a-white-dwarf-is","status":"publish","type":"post","link":"http:\/\/www.todayifoundout.com\/index.php\/2011\/02\/what-a-white-dwarf-is\/","title":{"rendered":"What a White Dwarf Is"},"content":{"rendered":"

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A white dwarf is a former star that is nearing the end of its life-cycle, with no further nuclear fusion going on at its core.\u00a0 Once most stars have used up the fuel at their core, they go into a red-giant or red super-giant phase and expand to incredible sizes.\u00a0 At the end of this phase, when the star has used up all its fuel that it can use via nuclear fusion, if it has enough mass, it will extremely rapidly collapse and create one of the most powerful explosions in the universe, the supernova.\u00a0 The burst of energy from a single supernova can briefly out-shine an entirely galaxy full of billions of stars.\u00a0 If the red giant doesn\u2019t have enough mass, it will simply collapse into a white dwarf and spend a couple billion years slowly dimming as it gives off its stored energy. Some star remnants are too small to begin with and so don\u2019t ever go into a red giant phase.\u00a0 When they do go into their \u201cred\u201d phase, they are called \u201cred dwarfs\u201d.\u00a0 However, the lifespan of these stars is longer than the universe has existed.\u00a0 Thus, every star that will eventually become a red dwarf is still around today and has not reached the red dwarf phase.\u00a0 As a general rule with stars, the bigger and brighter it is, the faster it burns out.\u00a0 The smaller it is, the longer it lives.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

##EMBED## Click Here for Sources and to Learn Why the Hottest Part of the Summer is Called the “Dog Days” Text Version A white dwarf is a former star that is nearing the end of its life-cycle, with no further nuclear fusion going on at its core.\u00a0 Once most stars have used up the fuel at their core, they go […]<\/p>\n","protected":false},"author":2,"featured_media":4803,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[689],"tags":[1144,1292],"class_list":["post-4802","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-quick-facts","tag-astronomy-facts","tag-white-dwarf"],"_links":{"self":[{"href":"http:\/\/www.todayifoundout.com\/index.php\/wp-json\/wp\/v2\/posts\/4802","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.todayifoundout.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.todayifoundout.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.todayifoundout.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.todayifoundout.com\/index.php\/wp-json\/wp\/v2\/comments?post=4802"}],"version-history":[{"count":2,"href":"http:\/\/www.todayifoundout.com\/index.php\/wp-json\/wp\/v2\/posts\/4802\/revisions"}],"predecessor-version":[{"id":7114,"href":"http:\/\/www.todayifoundout.com\/index.php\/wp-json\/wp\/v2\/posts\/4802\/revisions\/7114"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.todayifoundout.com\/index.php\/wp-json\/wp\/v2\/media\/4803"}],"wp:attachment":[{"href":"http:\/\/www.todayifoundout.com\/index.php\/wp-json\/wp\/v2\/media?parent=4802"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.todayifoundout.com\/index.php\/wp-json\/wp\/v2\/categories?post=4802"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.todayifoundout.com\/index.php\/wp-json\/wp\/v2\/tags?post=4802"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}