Three flaring sunspot groups! Taken By Mike Borman of Evansville, Indiana, with a Televue 102iis refractor, Coronado SM90 h-alpha filter with BF30, 2X barlow, Point Grey Reseach Grasshopper 3 camera. Processed with Registax and Photoshop CS4.
Our community is FREE to join. To participate you must either login or register for an account.
Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. View our Privacy Policy.
Astronomy Magazine