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2015 September 18 Sun AR12415

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發表於 2015-9-19 09:18:13 | 顯示全部樓層 |閱讀模式
AR12415 continues to show lots of flares and filaments.
Seeing is surprisingly very good at late afternoon.

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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