Submit your photo here. Comment or upvote on photo pages. Search via photographers' names. More improvements coming! To help, please donate.
Newt 4.5" + solar film, 1/640s ISO100
crop, B/C
AR3576 is shrinking and getting rounder at 4x2,5 Earths in size now, it displays a beautiful pair of light bridges arranged in "X"; and, meanwhile, the two dark cores of bipolar sunspot AR3583, upper left, grew very fast in the last day to bigger than Earth size, so as to keep an eye on them also