Sunspot group 1040 is seen on Jan. 13, 2010, taken with a Questar 3.5 inch telescope and a full-apeture solar filter from a suburban Milwaukee yard. The sunspots cover an area about 10 times the diameter of the earth, and are the largest sunspots to be seen since the sun came out of a longer-than usual solar minimum. It was taken with a Imaging Source DMK31AF03 monochrome firewire camera, and is a combination of 275 frames out of 400 taken. The images were stacked in Registax and processed in Adobe Photoshop CS3. Photo by Ernie Mastroianni.
