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2015 September 24 Sun - AR12422

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發表於 2015-10-20 23:45:53 | 顯示全部樓層 |閱讀模式
本文章最後由 PTS 於 2015-10-20 23:47 編輯

As AR12422 moves into the solar disc, more flares and filaments are visible.

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.
Sun-20150924100616986.jpg
AR12422-800b.gif
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