{"id":102,"date":"2026-07-21T10:45:02","date_gmt":"2026-07-21T15:45:02","guid":{"rendered":"http:\/\/aj-website-pi.local\/?p=102"},"modified":"2026-07-21T10:45:02","modified_gmt":"2026-07-21T15:45:02","slug":"castor","status":"publish","type":"post","link":"https:\/\/thestarguru.com\/index.php\/2026\/07\/21\/castor\/","title":{"rendered":"Castor"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Castor is a white main sequence star in the constellation Gemini. it is the second brightest star in said constellation, although its Bayer designation is \u03b1 Geminorum. It is a 6 star system, Composed of two white main sequence stars and four red dwarf stars. The two components of Castor C are also known as YY Geminorum. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Astronomical data<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Castor Aa<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Radius (in Solar Radii): 2.08 <em>R<\/em><sub>\u2609<\/sub><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Diameter (in Kilometers): 2,907,888 km<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mass (in Solar Masses): 2.37 <var>M<\/var><sub>\u2609<\/sub><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Distance (in Light Years): 49.15 ly<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Spectral type: A1V (White)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Castor Ba<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Radius (in Solar Radii): 1.64 <em>R<\/em><sub>\u2609<\/sub><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Diameter (in Kilometers): 2,294,016 km<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mass (in Solar Masses): 1.78 <var>M<\/var><sub>\u2609<\/sub><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Spectral type: Am (White)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Castor is a white main sequence star in the constellation Gemini. it is the second brightest star in said constellation, although its Bayer designation is \u03b1 Geminorum. It is a 6 star system, Composed of two white main sequence stars and four red dwarf stars. The two components of Castor C are also known as YY Geminorum. Astronomical data Castor&hellip; <a class=\"continue-reading-link\" href=\"https:\/\/thestarguru.com\/index.php\/2026\/07\/21\/castor\/\">Continue reading <span class=\"screen-reader-text\">Castor<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":103,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,7,25],"tags":[],"class_list":["post-102","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-main-sequence-stars","category-stars","category-stars-in-the-constellation-gemini","entry"],"_links":{"self":[{"href":"https:\/\/thestarguru.com\/index.php\/wp-json\/wp\/v2\/posts\/102","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=102"}],"version-history":[{"count":1,"href":"https:\/\/thestarguru.com\/index.php\/wp-json\/wp\/v2\/posts\/102\/revisions"}],"predecessor-version":[{"id":104,"href":"https:\/\/thestarguru.com\/index.php\/wp-json\/wp\/v2\/posts\/102\/revisions\/104"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/thestarguru.com\/index.php\/wp-json\/wp\/v2\/media\/103"}],"wp:attachment":[{"href":"https:\/\/thestarguru.com\/index.php\/wp-json\/wp\/v2\/media?parent=102"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/thestarguru.com\/index.php\/wp-json\/wp\/v2\/categories?post=102"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/thestarguru.com\/index.php\/wp-json\/wp\/v2\/tags?post=102"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}