PTS 發表於 2015-9-16 09:04:41

2015 September 11 Sun - AR12412 & AR12414

AR12414 deveops into a very complex and active group, with bright flares between the main sunspots that dominates the solar surface.Lots of filaments shoot out from the following spot.

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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