{"id":735943,"date":"2022-09-23T11:31:03","date_gmt":"2022-09-23T15:31:03","guid":{"rendered":"http:\/\/spaceweekly.com\/?p=735943"},"modified":"2022-09-23T11:31:03","modified_gmt":"2022-09-23T15:31:03","slug":"calibrating-the-luminosity-of-nearby-stars-to-refine-calculations-of-universe-age-and-expansion","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=735943","title":{"rendered":"Calibrating the luminosity of nearby stars to refine calculations of universe age and expansion"},"content":{"rendered":"<p>A picture may be worth a thousand words, but for astronomers, simply recording images of stars and galaxies isn&#8217;t enough. To measure the true size and absolute brightness (luminosity) of heavenly bodies, astronomers need to accurately gauge the distance to these objects. To do so, the researchers rely on &#8220;standard candles&#8221;\u2014stars whose luminosities are so well known that they act like light bulbs of known wattage. One way to determine a star&#8217;s distance from Earth is to compare how bright the star appears in the sky to its luminosity.&#013;<br \/>\n&#013;<br \/>\n&#013;<br \/>\n Click here for original story, <a href=\"https:\/\/phys.org\/news\/2022-09-calibrating-luminosity-nearby-stars-refine.html\" target=\"_blank\" rel=\"nofollow noopener\">Calibrating the luminosity of nearby stars to refine calculations of universe age and expansion<\/a>&#013;<br \/>\n&#013;<br \/>\n&#013;<br \/>\nSource: Phys.org&#013;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A picture may be worth a thousand words, but for astronomers, simply recording images of stars and galaxies isn&#8217;t enough. To measure the true size and absolute brightness (luminosity) of&hellip; <\/p>\n","protected":false},"author":1,"featured_media":615444,"comment_status":"false","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41],"tags":[],"class_list":["post-735943","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-phys-org"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/735943","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=735943"}],"version-history":[{"count":0,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/735943\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/615444"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=735943"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=735943"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=735943"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}