Sunspot 875 Flares
An unusually active sunspot region is now crossing the Sun. The region , numbered 875, is larger than the Earth and has produced several solar flare s over the past week. It should take a few more days for Sunspot 875 to finish crossing the solar disk. The above image of the Sun was taken last Wednesday in a very specific color of red light to bring up detail. Sunspot 875 , in the midst of erupting a large Class C solar flare , can be seen as the dark region to the upper right. In the above image , relatively cool region s appear dark while hot regions appear bright. On the far left, solar prominence s are visible hovering above the Sun's surface.