BIG Sunspot 1944 and large prominence

Posted by mborman
on Monday, January 06, 2014

Taken by Mike Borman of Evansville, Indiana on January 4, 2014. Used a Televue 102iis refractor, Coronado SM90 h-alpha filter with BF30, 2X barlow, PGR Grasshopper 3 camera. Used Registax for stacking best frames. False color added in Photoshop.

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