{"id":72712,"date":"2025-11-10T15:28:20","date_gmt":"2025-11-10T09:58:20","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=72712"},"modified":"2025-11-10T18:05:11","modified_gmt":"2025-11-10T12:35:11","slug":"visible-emission-line-coronagraph","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/visible-emission-line-coronagraph\/","title":{"rendered":"Visible Emission Line Coronagraph"},"content":{"rendered":"<h2><b>Visible Emission Line Coronagraph Latest News<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Recently, scientists at the Indian Institute of Astrophysics (IIA) have collaborated with NASA to estimate the crucial parameters of a coronal mass ejection (CME) by using Visible Emission Line Coronagraph (VELC) payload onboard India\u2019s Aditya-L1 mission.<\/span><\/p>\n<h2><b>About Visible Emission Line Coronagraph<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It is the primary payload of the <\/span><b>Aditya-L1 Mission<\/b><span style=\"font-weight: 400;\">\u2013India\u2019s first mission to observe the Sun from a vantage point 1.5 million kilometres from the earth.<\/span><\/li>\n<\/ul>\n<h2><b>Features of Visible Emission Line Coronagraph<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It is an <\/span><b>internally occulted solar coronagraph<\/b><span style=\"font-weight: 400;\"> capable of simultaneous imaging, spectroscopy, and spectro-polarimetry close to the solar limb.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It consists of a <\/span><b>coronagraph, spectrograph, polarimetry module<\/b><span style=\"font-weight: 400;\">, and detectors, aside from auxiliary optics.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It is built by the <\/span><b>Indian Institute of Astrophysics<\/b><span style=\"font-weight: 400;\"> (IIA) at <\/span><b>its CREST<\/b><span style=\"font-weight: 400;\"> (Centre for Research and Education in Science and Technology) campus at Hosakote, <\/span><b>Karnataka.<\/b><\/li>\n<\/ul>\n<h2><b>Objectives of Visible Emission Line Coronagraph<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It will <\/span><b>observe the solar corona,<\/b><span style=\"font-weight: 400;\"> which is the tenuous, outermost layer of the solar atmosphere.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">VELC can image the solar corona <\/span><b>down to 1.05 times the solar radius<\/b><span style=\"font-weight: 400;\">, which is the closest any such payload has imaged.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It will analyze the coronal <\/span><b>temperature, plasma velocity, density,<\/b><span style=\"font-weight: 400;\"> etc.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It will also study <\/span><b>Coronal Mass Ejections (CMEs) and the solar wind.<\/b><\/li>\n<\/ul>\n<p><b>Source: <\/b><strong><a href=\"https:\/\/www.thehindu.com\/sci-tech\/science\/aditya-l1-iia-nasa-collaborate-to-record-spectroscopic-observations-of-a-cme-in-visible-wavelength-range-for-very-first-time\/article70258711.ece\" target=\"_blank\" rel=\"nofollow noopener\">TH<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Visible Emission Line Coronagraph is the primary payload of the Aditya-L1 Mission\u2013India\u2019s first mission to observe the Sun from a vantage point 1.5 million kilometres from the earth. Read more about Visible Emission Line Coronagraph, Features, Latest News.<\/p>\n","protected":false},"author":24,"featured_media":72778,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[246,21,23,3633],"class_list":{"0":"post-72712","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"tag-prelims-current-affairs","9":"tag-prelims-pointers","10":"tag-upsc-prelims-current-affairs","11":"tag-visible-emission-line-coronagraph","12":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/72712","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\/24"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=72712"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/72712\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/72778"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=72712"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=72712"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=72712"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}