PTS 發表於 2015-6-24 14:44:18

2015 June 20 Sun

AR12367 in the SW hemisphere and the very active AR12371 has grown larger as it moves towards the meridian.

AR12371 is producing lots of flares and filaments, and occupies huge arena on the solar surface.


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.
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