Sunspot group 10069

Sunspot group 10069 (on the right side of the Sun's disk) will remain visible on the solar surface for one or two more days until the Sun's rotation carries it out of our view. This afocal image was taken at 10:30 a.m. (EDT) August 21st with a Nikon Coopix 4500 camera through a Questar 3.5-inch Maksutov telescope using a 40-mm Plössl eyepiece. Click on the image for a closer view of the sunspot group.

Sky & Telescope photo by Gary Seronik.

A large, naked-eye sunspot group will remain visible for one or two more days until the rotation of the Sun carries it off the Sun's western limb. The complex, known as sunspot group 10069, was responsible for a recent coronal mass ejection (CME) that produced some minor auroral activity. Daily images of the Sun can be found at the Big Bear Solar Observatory's Web site.

Remember, never look at the Sun without proper eye protection. There are a variety of ways to safely observe the Sun, many of which can be found in the solar observing section of our Web site.


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