{"id":57,"date":"2026-07-20T12:16:56","date_gmt":"2026-07-20T17:16:56","guid":{"rendered":"http:\/\/aj-website-pi.local\/?p=57"},"modified":"2026-07-20T12:27:13","modified_gmt":"2026-07-20T17:27:13","slug":"antares","status":"publish","type":"post","link":"https:\/\/thestarguru.com\/index.php\/2026\/07\/20\/antares\/","title":{"rendered":"Antares"},"content":{"rendered":"\n
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Artistic Representation of Antares B (photo of the sun)<\/mark><\/figcaption><\/figure>\n\n\n\n

Antares is a binary star system in the constellation Scorpius consisting of a Red Supergiant and a Blue main sequence star. Antares A is the brightest star in the constellation Scorpius, as well as the 15th brightest star in the night sky. Antares A is often associated among the largest stars, with a radius of 680 Solar Radii. Antares A shares similarities with various red supergiants, such as R Horologii and Betelgeuse, with all three stars having similar size and temperature. Antares B is much dimmer than its much larger companion, making it much more difficult to see. <\/p>\n\n\n\n

Astronomical data<\/h2>\n\n\n\n

Antares A<\/strong><\/p>\n\n\n\n

Radius (in Solar Radii): 680 R<\/em>\u2609<\/sub><\/p>\n\n\n\n

Diameter (in Kilometers): 946,560,000 km<\/p>\n\n\n\n

Mass (in Solar Masses): 15 M<\/var>\u2609<\/sub><\/p>\n\n\n\n

Distance (in Light Years): 550 ly<\/p>\n\n\n\n

Spectral type: M1.5Iab (Red)<\/p>\n\n\n\n

Antares B<\/strong><\/p>\n\n\n\n

Radius (in Solar Radii): 5.2 R<\/em>\u2609<\/sub><\/p>\n\n\n\n

Diameter (in Kilometers): 7,238,400 km<\/p>\n\n\n\n

Mass (in Solar Masses): 7.2 M<\/var>\u2609<\/sub><\/p>\n\n\n\n

Distance (in Light Years): 550 ly<\/p>\n\n\n\n

Spectral type: B2.5V (Blue)<\/p>\n\n\n\n

Gallery<\/h2>\n\n\n\n
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The Sun compared to the components of the Antares system<\/mark><\/figcaption><\/figure>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Antares is a binary star system in the constellation Scorpius consisting of a Red Supergiant and a Blue main sequence star. Antares A is the brightest star in the constellation Scorpius, as well as the 15th brightest star in the night sky. Antares A is often associated among the largest stars, with a radius of 680 Solar Radii. Antares A… Continue reading Antares<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":58,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13,7,14],"tags":[],"class_list":["post-57","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-red-supergiant-stars","category-stars","category-stars-in-the-constellation-scorpius","entry"],"_links":{"self":[{"href":"https:\/\/thestarguru.com\/index.php\/wp-json\/wp\/v2\/posts\/57","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/thestarguru.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/thestarguru.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/thestarguru.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/thestarguru.com\/index.php\/wp-json\/wp\/v2\/comments?post=57"}],"version-history":[{"count":3,"href":"https:\/\/thestarguru.com\/index.php\/wp-json\/wp\/v2\/posts\/57\/revisions"}],"predecessor-version":[{"id":64,"href":"https:\/\/thestarguru.com\/index.php\/wp-json\/wp\/v2\/posts\/57\/revisions\/64"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/thestarguru.com\/index.php\/wp-json\/wp\/v2\/media\/58"}],"wp:attachment":[{"href":"https:\/\/thestarguru.com\/index.php\/wp-json\/wp\/v2\/media?parent=57"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/thestarguru.com\/index.php\/wp-json\/wp\/v2\/categories?post=57"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/thestarguru.com\/index.php\/wp-json\/wp\/v2\/tags?post=57"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}