PTS 發表於 2015-6-23 11:48:23

2015 June 17 Sun

The solar surface is dominated by the huge AR12367 in the southern hemisphere and the very active AR12371 near the NE limb.The huge filaments have diminished a bit.


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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