Prominence to filament – – 22/10/2017

Hole in clouds appeared just long enough to grab an image of the solar disc this morning. The “big prominence” is now seen as a big filament, as can be seen by comparing it with yesterday’s image (now rotated so that north is at the top). Also we have a new(ish) spot. (2685)

Spaceweather says:

“New sunspot AR2685 is an old friend: AR2673 making its third trip across the Earthside of the sun. Although it has decayed significantly since its early September heyday, this old sunspot is still capable of activity, such as the M1-class solar flare it produced on Oct. 21st.”

 

 

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