{"id":2470,"date":"2023-02-24T03:34:59","date_gmt":"2023-02-23T22:04:59","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=2470"},"modified":"2025-03-25T21:42:07","modified_gmt":"2025-03-25T16:12:07","slug":"what-is-messier-92","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/what-is-messier-92\/","title":{"rendered":"What is Messier 92?"},"content":{"rendered":"<h2>About Messier 92:<\/h2>\n<ul>\n<li>It is a <strong>bright and large globular cluster in the constellation of Hercules.<\/strong><\/li>\n<li>It is located at a distance of <strong>26,700 light-years from Earth.<\/strong>\u00a0<\/li>\n<li>It was <strong>first discovered<\/strong> by the <strong>German astronomer Johann Elert Bode in 1777<\/strong>.<\/li>\n<li>The <strong>predominant elements<\/strong> within Messier 92 <strong>are hydrogen and helium<\/strong>.<\/li>\n<li>Messier 92 has an <strong>estimated mass of up to 330,000 solar masses<\/strong>.<\/li>\n<li>The cluster is <strong>approaching the Milky Way galaxy at a speed of about 112 km<\/strong>\/s (403,200 km\/h; 250,500 mph).<\/li>\n<\/ul>\n<h4><strong>\u00a0<\/strong>What is a Globular Cluster?<\/h4>\n<ul>\n<li>Globular clusters are <strong>spherical aggregates of several thousand to millions of stars bound by gravity.<\/strong><\/li>\n<li>They <strong>orbit mostly in the extended stellar halos<\/strong> surrounding most spiral galaxies.<\/li>\n<li>They <strong>contain some of the oldest stars in a galaxy.<\/strong><\/li>\n<li>These systems are thought to have <strong>formed early on in the Universe<\/strong> and can serve as perfect astrophysical laboratories for astronomers to understand how stars evolve through various phases.<\/li>\n<\/ul>\n<h4>What is Solar Mass?<\/h4>\n<p>It is the <strong>mass of the sun<\/strong>, which is <strong>1.989 x 10^30 kilograms<\/strong> \u2014 about <strong>333,000 Earths<\/strong>.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<h3>Q1)\u00a0What is a Stellar halo?<\/h3>\n<p>A stellar halo is an essentially spherical population of stars and globular clusters thought to surround most disk galaxies and the cD class of elliptical galaxies. Only about 1% of a galaxy\u2019s stellar mass resides in its halo, and due to this low luminosity, the observation of halos in other galaxies is extremely difficult.\u00a0<\/p>\n<p>Source: <a href=\"https:\/\/www.news9live.com\/science\/james-webb-space-telescope-observes-globular-star-cluster-messier-92-au941-2058982\" target=\"_blank\" rel=\"nofollow noopener\">James Webb Space Telescope observes globular star cluster Messier 92<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Messier 92 is a bright and large globular cluster in the constellation of Hercules<\/p>\n","protected":false},"author":5,"featured_media":2471,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-2470","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/2470","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=2470"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/2470\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/2471"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=2470"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=2470"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=2470"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}