2016 July 28 Sun
本文章最後由 PTS 於 2016-7-29 22:07 編輯The solar surface is dominated by the hugely long filament in the northern hemisphere.While a large patch of AR-like region near the SE limb shows lots of activities, the tiny AR12570 near the E limb is definitely active.
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]