M104 Sombrero Galaxy

Monday, January 4, 2010

Solar active region 11039

Detail of an image by Kanzelhoehe Observatory in Austria January 2. This region has produced more than 40 flares. Here is an animation of a C6.2 X-ray class flare, from the STEREO Ahead extreme ultraviolet camera.

Detail of a SOHO 171 angstrom image January 5