{"id":4131,"date":"2023-05-24T09:00:21","date_gmt":"2023-05-24T13:00:21","guid":{"rendered":"https:\/\/orbitalhub.com\/?p=4131"},"modified":"2023-05-25T21:59:57","modified_gmt":"2023-05-26T01:59:57","slug":"black-holes","status":"publish","type":"post","link":"https:\/\/orbitalhub.com\/?p=4131","title":{"rendered":"Black Holes"},"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\/8GnSFAZD8YY\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe>\n<\/p>\n<p class=\"MsoNormal\" style=\"margin: 5px;\">&nbsp;<\/p>\n<p>NASA dicit:<\/p>\n<p>The animation highlights the \u201csuper\u201d in supermassive black holes. These monsters lurk in the centers of most big galaxies, including our own Milky Way, and contain between 100,000 and tens of billions of times more mass than our Sun. <\/p>\n<p>Any light crossing the event horizon \u2013 the black hole\u2019s point of no return \u2013 becomes trapped forever, and any light passing close to it is redirected by the black hole\u2019s intense gravity. Together, these effects produce a \u201cshadow\u201d about twice the size of the black hole\u2019s actual event horizon. <\/p>\n<p>The animation shows 10 supersized black holes that occupy center stage in their host galaxies, including the Milky Way and M87, scaled by the sizes of their shadows. Starting near the Sun, the camera steadily pulls back to compare ever-larger black holes to different structures in our solar system. <\/p>\n<p>First up is 1601+3113, a dwarf galaxy hosting a black hole packed with the mass of 100,000 Suns. The matter is so compressed that even the black hole\u2019s shadow is smaller than our Sun. <\/p>\n<p>The black hole at the heart of our own galaxy, called Sagittarius A* (pronounced ay-star), boasts the weight of 4.3 million Suns based on long-term tracking of stars in orbit around it. It\u2019s shadow diameter spans about half that of Mercury\u2019s orbit in our solar system. <\/p>\n<p>The animation shows two monster black holes in the galaxy known as NGC 7727. Located about 1,600 light-years apart, one weighs 6 million solar masses and the other more than 150 million Suns. Astronomers say the pair will merge within the next 250 million years. <\/p>\n<p>At the animation\u2019s larger scale lies M87\u2019s black hole, now with a updated mass of 5.4 billion Suns. Its shadow is so big that even a beam of light \u2013 traveling at 670 million mph (1 billion kph) \u2013 would take about two and a half days to cross it. <\/p>\n<p>The movie ends with TON 618, one of a handful of extremely distant and massive black holes for which astronomers have direct measurements. This behemoth contains more than 60 billion solar masses, and it boasts a shadow so large that a beam of light would take weeks to traverse it. <\/p>\n<p>Video credit: NASA Goddard<\/p>\n<p class=\"MsoNormal\" style=\"margin: 5px;\">&nbsp;<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>The animation highlights the \u201csuper\u201d in supermassive black holes.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[391,463],"tags":[],"class_list":["post-4131","post","type-post","status-publish","format-standard","hentry","category-astronomy","category-videos"],"_links":{"self":[{"href":"https:\/\/orbitalhub.com\/index.php?rest_route=\/wp\/v2\/posts\/4131","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=4131"}],"version-history":[{"count":1,"href":"https:\/\/orbitalhub.com\/index.php?rest_route=\/wp\/v2\/posts\/4131\/revisions"}],"predecessor-version":[{"id":4132,"href":"https:\/\/orbitalhub.com\/index.php?rest_route=\/wp\/v2\/posts\/4131\/revisions\/4132"}],"wp:attachment":[{"href":"https:\/\/orbitalhub.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4131"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/orbitalhub.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4131"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/orbitalhub.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4131"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}