The small but very active group that appears right on the SE limb is numbered AR11861. Flares are observed to erupt with associated eruptions that shoot above the solar disc.
Telescope: AP Starfire EDT 155 mm f/9.
stopped to 50 mm for disc images, with 4X telecentric lens (f/36) for closeups
filter: Solar Spectrum SO1.5/0.3A with CERF prefilter
Camera: Imperx 4M15
North is up, and east to the left
發表於 2013-10-14 19:53:05