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2015 Oct. 14 Sun -AR12434

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發表於 2015-10-19 22:42:01 | 顯示全部樓層 |閱讀模式
On Oct. 14, the whole of AR12434, including the large dark filament to its west side, is on the front side.
Flares appear on both east and west of the sunspot.

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-20151014101559348.jpg
AR12434-825.gif
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