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G2 Aurora Storm Forecast For March 23 / Space Station Back At Dusk

21 Mar 2019, 16:45 UTC
G2 Aurora Storm Forecast For March 23 / Space Station Back At Dusk
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This photo, taken by NASA’s STEREO-A spacecraft, shows the coronal mass ejection (CME) in progress after a solar flare blew up in sunspot group 2736 (photo below). Most of the material will likely miss the Earth, but we’re expecting a glancing blow, enough to stir up a G2 geomagnetic storm. The sun is covered with an opaque disk to block glare. NASA
Spring brings new vigor to the night sky scene. And the day sky too! After being spotless for weeks, two sunspot groups have popped into view. The larger of the two, named active region 2736, produced a flare early on March 20 that propelled a burst of solar plasma (electrons and protons) toward the Earth. It’s expected to arrive around noon Central Time this Saturday, March 23 and intensify to a G2 (moderate) geomagnetic storm during the afternoon and last into the early evening hours.
After many blank days, the sun has its spots back. Today, active region 2736 is easy to see in a small telescope equipped with a safe solar filter. NASA’s Solar Dynamics Observatory took this photo earlier this morning. NASA
A moderate storm usually means that skywatchers across the northern tier of states will ...

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