{"id":24703,"date":"2022-01-24T05:56:27","date_gmt":"2022-01-24T05:56:27","guid":{"rendered":"http:\/\/finn-family.com\/?p=24703"},"modified":"2022-01-24T05:56:27","modified_gmt":"2022-01-24T05:56:27","slug":"rigel-and-the-witch-head-nebula-2","status":"publish","type":"post","link":"http:\/\/finn-family.com\/?p=24703","title":{"rendered":"Rigel and the Witch Head Nebula"},"content":{"rendered":"<div><img src='https:\/\/apod.nasa.gov\/image\/2201\/RigelWitchHead_Mtanous_960.jpg' style='max-width:600px;' \/><\/p>\n<div>By starlight this eerie visage shines in the dark, a crooked profile evoking its popular name, the Witch Head Nebula. In fact, this entrancing telescopic portrait gives the impression that the witch has fixed her gaze on Orion&#8217;s bright supergiant star Rigel. More formally known as IC 2118, the Witch Head Nebula spans about 50 light-years and is composed of interstellar dust grains reflecting Rigel&#8217;s starlight. The blue color of the Witch Head Nebula and of the dust surrounding Rigel is caused not only by Rigel&#8217;s intense blue starlight but because the dust grains scatter blue light more efficiently than red. The same physical process causes Earth&#8217;s daytime sky to appear blue, although the scatterers in Earth&#8217;s atmosphere are molecules of nitrogen and oxygen. Rigel, the Witch Head Nebula, and gas and dust that surrounds them lie about 800 light-years away. via NASA <a href=\"https:\/\/apod.nasa.gov\/apod\/ap220124.html\"><\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>By starlight this eerie visage shines in the dark, a crooked profile evoking its popular name, the Witch Head Nebula. In fact, this entrancing telescopic portrait gives the impression that <a href=\"http:\/\/finn-family.com\/?p=24703\" class=\"more-link\">[&hellip;]<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"Layout":"","footnotes":"","_links_to":"","_links_to_target":""},"categories":[9],"tags":[10,12],"class_list":["entry","author-admin","post-24703","post","type-post","status-publish","format-standard","category-whatsup","tag-ifttt","tag-nasa"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"http:\/\/finn-family.com\/index.php?rest_route=\/wp\/v2\/posts\/24703","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/finn-family.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/finn-family.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/finn-family.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/finn-family.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=24703"}],"version-history":[{"count":1,"href":"http:\/\/finn-family.com\/index.php?rest_route=\/wp\/v2\/posts\/24703\/revisions"}],"predecessor-version":[{"id":24704,"href":"http:\/\/finn-family.com\/index.php?rest_route=\/wp\/v2\/posts\/24703\/revisions\/24704"}],"wp:attachment":[{"href":"http:\/\/finn-family.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=24703"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/finn-family.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=24703"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/finn-family.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=24703"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}