{"id":778591,"date":"2024-03-08T15:38:52","date_gmt":"2024-03-08T20:38:52","guid":{"rendered":"http:\/\/spaceweekly.com\/?p=778591"},"modified":"2024-03-08T15:38:52","modified_gmt":"2024-03-08T20:38:52","slug":"sar-arc-outbreak-over-the-baltics-and-russia","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=778591","title":{"rendered":"SAR arc outbreak over the Baltics and Russia"},"content":{"rendered":"


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A coronal mass ejection (CME) that hit Earth on March 3, 2024, sparked G2 \u2013 Moderate geomagnetic storming with widespread Stable Auroral Red (SAR) arcs over the Baltics and Russia.<\/strong><\/p>\n

SAR arcs were widely observed, from Latvia to eastern Russia during the last G2 geomagnetic storm, as reported by Dr. Tony Phillips of SpaceWeather.com.<\/p>\n

\u201cGlowing with some of the purest red light nature can produce, these arcs look like auroras but are produced by a completely different process,\u201d Phillips said.<\/p>\n

While auroras appear when charged particles rain down from space, hitting the atmosphere and causing it to glow, SARs are a sign of heat energy leaking into the upper atmosphere from Earth\u2019s ring current system, a donut-shaped circuit carrying millions of amps around our planet.<\/p>\n

\u201cDuring the geomagnetic storm of March 3, this ring current sprang a significant leak,\u201d Phillips explained.<\/p>\n

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SAR arc capture near Moscow, Russia on March 3, 2024. Credit: Vladimir Nerush via SpaceWeather<\/figcaption><\/figure>\n<\/div>\n

\u201cIt emerged from the trees and passed right by the Pleiades\u2026 the red color was so pure,\u201d said Vladimir Nerush, who photographed the SAR arc (above) just east of Moscow. <\/p>\n

SAR arcs are among the reddest things in the sky, with a monochromatic glow at 6300 \u00c5 that comes from atomic oxygen in the upper atmosphere. While the human eye is relatively insensitive to light at this wavelength cameras catch them easily.\u00a0Phillips also shared a pro tip for those who want to capture them in all their beauty: use a 6300 \u00c5 filter.<\/p>\n

References:<\/p>\n

1<\/sup> These red lights are not auroras \u2013 SpaceWeather \u2013 March 8, 2024<\/p>\n

Featured image: SAR arc over Kiia k\u00fcla, Estonia. Credit: M\u00e4rt Varatu via SpaceWeather<\/em><\/p>\n

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A coronal mass ejection (CME) that hit Earth on March 3, 2024, sparked G2 \u2013 Moderate geomagnetic storming with widespread Stable Auroral Red (SAR) arcs over the Baltics and Russia.… <\/p>\n","protected":false},"author":1,"featured_media":778592,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[],"class_list":["post-778591","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-space-weather-reports"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/778591","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=778591"}],"version-history":[{"count":0,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/778591\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/778592"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=778591"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=778591"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=778591"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}