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2014 Oct 21 Sun - AR12192 continues to develop

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發表於 2014-11-3 06:50:39 | 顯示全部樓層 |閱讀模式
The largest sunspot of AR12192 is plainly visible with the naked-eye.  
The flares and aruptions continue 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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