PTS 發表於 2015-8-24 18:06:18

2015 August 24 Sun - AR12403

AR12403 is west of the meridiam today.and has become more and more complex.
Flares and filaments are produced non-stop.A flare that appears west of the following sunspot shows rapid changes.

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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