{"id":4062,"date":"2023-01-25T04:47:24","date_gmt":"2023-01-24T23:17:24","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=4062"},"modified":"2025-03-26T21:23:33","modified_gmt":"2025-03-26T15:53:33","slug":"what-is-green-comet","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/what-is-green-comet\/","title":{"rendered":"What is Green Comet?"},"content":{"rendered":"<h2><strong>What are Green comets?<\/strong><\/h2>\n<ul>\n<li>Comets are <strong>frozen rocky or gas-filled objects<\/strong> that are remnants of the formation of the solar system.\u00a0<\/li>\n<li>The solid portions of a comet which is mostly water ice with embedded dust particles.<\/li>\n<li>When near the sun, the icy cometary surfaces vaporise and emit large amounts of gas and dust, resulting in a massive atmosphere and tails.<\/li>\n<li>The fluorescence of these gases, and especially the reflection of sunlight from the minute dust particles in the comet&#8217;s atmosphere and tail, is what give these objects their visual impact.<\/li>\n<li>Just like other bodies in space, comets also <strong>have orbits<\/strong>. They are sometimes pulled in close to the sun because of the sun\u2019s gravity acting on them.<\/li>\n<li>The orbit indicates this comet comes from the edge of our solar system, a distant reservoir of comets we call the <strong>Oort cloud.<\/strong><\/li>\n<li>The Oort cloud is thought to be a big, spherical region of outer space enveloping our sun, consisting of innumerable small objects, such as comets and asteroids.<\/li>\n<li><strong>What is the reason for the Green colour?<\/strong> Laboratory research has linked this green-like aura to a reactive molecule called <strong>dicarbon,<\/strong> which emits green light as sunlight decays it.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<hr \/>\n<h3>Q1) What is Zwicky Transient Facility?<\/h3>\n<p>The Zwicky Transient Facility (ZTF) is a public-private partnership aimed at a systematic study of the optical night sky. Using an extremely wide field of view camera, ZTF scans the entire Northern sky every two days.<\/p>\n<p><strong>Source:<\/strong>\u00a0<a href=\"https:\/\/indianexpress.com\/article\/explained\/explained-sci-tech\/green-comet-close-to-earth-details-date-time-8401036\/\" target=\"_blank\" rel=\"nofollow noopener\"><u>Green comet\u2019 appearing close to Earth after 50,000 years: What is it and when can you see it?<\/u><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Comets are frozen rocky or gas-filled objects that are remnants of the formation of the solar system.<\/p>\n","protected":false},"author":5,"featured_media":4063,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-4062","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\/4062","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=4062"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/4062\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/4063"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=4062"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=4062"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=4062"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}