Sky this Week

Here is the sun in white light. I did h-alpha as well, but missed focus — out of practice I guess! Active region 10898 on the east limb (left) at 350 milli-hemispheres is the largest we’ve seen for a while.

Image of the sun was taken with 80mm refractor telescope, a Stellarvue A1010, Teleview 2.5X Powermate, and Canon 300D digital camera. Shutter at 1/250 sec at ASA 100. About 18 images aligned and stacked with Registax3, wavelet filtered, and color adjusted.