{"id":21393,"date":"2025-09-14T20:39:08","date_gmt":"2025-09-14T20:39:08","guid":{"rendered":"https:\/\/www.newsbeep.com\/ie\/21393\/"},"modified":"2025-09-14T20:39:08","modified_gmt":"2025-09-14T20:39:08","slug":"butterfly-shaped-hole-in-the-sun-could-spark-rare-auroras-this-weekend-heres-when-to-look","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/ie\/21393\/","title":{"rendered":"Butterfly-Shaped Hole in the Sun Could Spark Rare Auroras This Weekend – Here\u2019s When to Look"},"content":{"rendered":"

A dramatic, butterfly-shaped \u201chole\u201d in the sun\u2019s atmosphere is blasting a stream of solar wind toward Earth this weekend, setting the stage for a geomagnetic storm and dazzling auroras<\/a> for skywatchers across the Northern Hemisphere.<\/p>\n

Solar Storm Alert: Butterfly-Shaped Coronal Hole Sparks Aurora Watch\"butterfly-shapedCredit: SDO\/NASA via SWNS<\/p>\n

A colossal coronal hole \u2014 stretching an astonishing 310,000 miles (500,000 kilometers) across the solar surface \u2014 has flared open, unleashing high-speed solar wind directly at our planet. Forecasts indicate these charged particles will slam into Earth\u2019s magnetic field around 13 and 14 September, possibly triggering an active to G1 (minor) geomagnetic storm, with a shot at reaching G2 (moderate) levels.<\/p>\n

Related: Cosmic Chemistry On Saturn\u2019s Moon Enceladus: New Experiment Reveals How Radiation Transforms Ice<\/a><\/p>\n

Where Auroras Will AppearNorthern Hemisphere:\u00a0If the storm intensifies, vivid auroras may ripple across night skies in Canada, Alaska, Scandinavia, and northern parts of the U.K.Southern Hemisphere:\u00a0Antarctica is in for a show, with a slim chance of sightings from Tasmania and southern New Zealand.Aurora Odds:\u00a0The best displays are expected under dark, clear skies \u2014 so aurora hunters, cameras at the ready!Why This Weekend Is Special<\/p>\n

This solar storm alert coincides with the\u00a0Russell-McPherron effect, a seasonal boost during spring and autumn equinoxes<\/a>. Around equinoxes (the next is 22 September), Earth\u2019s axis tilts just right, making it easier for solar wind to interact with the planet\u2019s magnetosphere. Geomagnetic storms are roughly\u00a0twice as likely\u00a0now compared to other times of the year.<\/p>\n

How Do Auroras Work?<\/p>\n

When solar wind slams into Earth\u2019s magnetic \u201cshield,\u201d charged particles collide with oxygen and nitrogen atoms in the upper atmosphere. This cosmic clash releases energy as shimmering light \u2014 the famed northern and southern lights. Stronger solar winds mean the light show becomes brighter, more colorful, and visible further from the poles.<\/p>\n

What to Expect<\/p>\n

NOAA predicts mostly G1 (minor) storming \u2014 but if the sun\u2019s magnetic field lines up just right with ours, G2 (moderate) levels aren\u2019t out of the question. Such storms can lead to especially vivid auroras, visible far from the usual Arctic and Antarctic circles. Forecasts remain uncertain till the solar wind arrives \u2014 so there\u2019s always an element of cosmic surprise.<\/p>\n

Published by Space Enthusiast<\/p>\n

An amateur rocket enthusiast with a keen interest in all space-related activity. Looking forward to the day when the UK starts launching rockets into space and I’m able to watch launches (from a safe distance of course).<\/p>\n

All posts by Space Enthusiast<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"A dramatic, butterfly-shaped \u201chole\u201d in the sun\u2019s atmosphere is blasting a stream of solar wind toward Earth this…\n","protected":false},"author":2,"featured_media":21394,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[7669,61,60,43,82,247],"class_list":{"0":"post-21393","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-space","8":"tag-auroras","9":"tag-ie","10":"tag-ireland","11":"tag-news","12":"tag-science","13":"tag-space"},"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts\/21393","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/comments?post=21393"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts\/21393\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/media\/21394"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/media?parent=21393"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/categories?post=21393"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/tags?post=21393"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}