Spaceweather.

THE SOLAR WIND IS COMING: A solar wind stream is approaching Earth, due today or tomorrow. The gaseous material is flowing from a southern hole in the sun's atmosphere. NASA's STEREO-A spacecraft sampled the stream last week; it was blowing 500 km/s. This kind of stream is unlikely to cause a geomagnetic storm.

Might be a minor visual aurora.


Graham (G4FUJ)

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