{"id":19531,"date":"2018-07-11T04:56:41","date_gmt":"2018-07-11T04:56:41","guid":{"rendered":"http:\/\/finn-family.com\/?p=19531"},"modified":"2018-07-11T04:56:41","modified_gmt":"2018-07-11T04:56:41","slug":"symbiotic-r-aquarii-2","status":"publish","type":"post","link":"http:\/\/finn-family.com\/?p=19531","title":{"rendered":"Symbiotic R Aquarii"},"content":{"rendered":"<div><img src='https:\/\/apod.nasa.gov\/image\/1807\/Raquarii_HubbleSchmidt_1080.jpg' style='max-width:600px;' \/><\/p>\n<div>You can see it change in brightness with just binoculars over the course of a year. Variable star R Aquarii is actually an interacting binary star system, two stars that seem to have a close, symbiotic relationship. About 710 light years away, this intriguing system consists of a cool red giant star and hot, dense white dwarf star in mutual orbit around their common center of mass. The binary system&#8217;s visible light is dominated by the red giant, itself a Mira-type long period variable star. But material in the cool giant star&#8217;s extended envelope is pulled by gravity onto the surface of the smaller, denser white dwarf, eventually triggering a thermonuclear explosion and blasting material into space. The featured image from the Hubble Space Telescope shows the still-expanding ring of debris which spans less than a light year and originated from a blast that would have been seen in the early 1770s. The evolution of less understood energetic events producing high energy emission in the R Aquarii system has been monitored since 2000 using Chandra X-ray Observatory data. via NASA <a href=\"https:\/\/apod.nasa.gov\/apod\/ap180711.html\"><\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>You can see it change in brightness with just binoculars over the course of a year. Variable star R Aquarii is actually an interacting binary star system, two stars that <a href=\"http:\/\/finn-family.com\/?p=19531\" 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-19531","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\/19531","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=19531"}],"version-history":[{"count":1,"href":"http:\/\/finn-family.com\/index.php?rest_route=\/wp\/v2\/posts\/19531\/revisions"}],"predecessor-version":[{"id":19532,"href":"http:\/\/finn-family.com\/index.php?rest_route=\/wp\/v2\/posts\/19531\/revisions\/19532"}],"wp:attachment":[{"href":"http:\/\/finn-family.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=19531"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/finn-family.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=19531"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/finn-family.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=19531"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}