{"id":206,"date":"2026-07-27T14:46:17","date_gmt":"2026-07-27T19:46:17","guid":{"rendered":"https:\/\/thestarguru.com\/?p=206"},"modified":"2026-07-27T14:46:52","modified_gmt":"2026-07-27T19:46:52","slug":"r-horologii","status":"publish","type":"post","link":"https:\/\/thestarguru.com\/index.php\/2026\/07\/27\/r-horologii\/","title":{"rendered":"R Horologii"},"content":{"rendered":"\n

R Horologii is a red supergiant star in the constellation Horologium. It is a Mira-type variable star with a magnitude of 4.7 to 14.3, one of the largest ranges of brightness for any star. It is located only 756 light years away, one of the closest large supergiants. R Horologii shares some traits with Antares and Betelgeuse, two other large supergiant stars, with R Horologii being the smallest, dimmest and coolest of the three.<\/p>\n\n\n\n

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

Radius (in Solar Radii): 630 R<\/em>\u2609<\/sub><\/p>\n\n\n\n

Diameter (in Kilometers): 876,960,000 km<\/p>\n\n\n\n

Mass (in Solar Masses): 0.89 M<\/var>\u2609<\/sub><\/p>\n\n\n\n

Distance (in Light Years): 756 ly<\/p>\n\n\n\n

Spectral type: M5-7e (Red)<\/p>\n\n\n\n

Gallery<\/h2>\n\n\n\n
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R Horologii compared to Antares and Betelgeuse<\/mark><\/figcaption><\/figure>\n\n\n\n

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

R Horologii is a red supergiant star in the constellation Horologium. It is a Mira-type variable star with a magnitude of 4.7 to 14.3, one of the largest ranges of brightness for any star. It is located only 756 light years away, one of the closest large supergiants. R Horologii shares some traits with Antares and Betelgeuse, two other large… Continue reading R Horologii<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":207,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13,7,46],"tags":[],"class_list":["post-206","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-red-supergiant-stars","category-stars","category-stars-in-the-constellation-horologium","entry"],"_links":{"self":[{"href":"https:\/\/thestarguru.com\/index.php\/wp-json\/wp\/v2\/posts\/206","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=206"}],"version-history":[{"count":1,"href":"https:\/\/thestarguru.com\/index.php\/wp-json\/wp\/v2\/posts\/206\/revisions"}],"predecessor-version":[{"id":209,"href":"https:\/\/thestarguru.com\/index.php\/wp-json\/wp\/v2\/posts\/206\/revisions\/209"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/thestarguru.com\/index.php\/wp-json\/wp\/v2\/media\/207"}],"wp:attachment":[{"href":"https:\/\/thestarguru.com\/index.php\/wp-json\/wp\/v2\/media?parent=206"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/thestarguru.com\/index.php\/wp-json\/wp\/v2\/categories?post=206"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/thestarguru.com\/index.php\/wp-json\/wp\/v2\/tags?post=206"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}