"The aurora australis that lit up the sky resulted from what has been dubbed a cannibal solar storm. On social media, aurora viewers shared images from across the country, as far north as Port Macquarie in New South Wales. Waves of light over Pirates Bay on the Tasman Peninsula, Tasmania. Photograph: Julian Witek Over Australia, the storm caused by powerful bursts of energy from the sun reached G4 geomagnetic storm conditions on Wednesday, according to the Bureau of Meteorology's space weather forecasting centre."
"Since 9 November, the sun has released two strong coronal mass ejections bursts of high-energy plasma towards Earth. They happened at two different times on the ninth and the 10th, Driessen said. Basically, the one on the 10th was a bit faster, so it caught up with the one on the ninth. The BGS told CNN: The second one caught up with the first one and they amalgamated together by the time they reached Earth."
A cannibal solar storm, formed when a faster coronal mass ejection caught up with an earlier one, produced bright aurora australis visible across large parts of Australia and New Zealand. Social media users captured displays as far north as Port Macquarie and along Tasmania's Tasman Peninsula. The storm pushed Australia to G4 geomagnetic storm conditions and caused local activity in the UK to reach G5, the maximum on the scale. A strong, magnetically active sunspot accompanied the ejections. The double CME impact created the largest induced geoelectric field recorded in the UK since British Geological Survey records began in 2012.
Read at www.theguardian.com
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