2015 Oct. 13 Sun -AR12434
AR12434 appears on the SE limb on Oct. 13, surrounded by a dark filament/prominence.
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.
頁:
[1]