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2015 Sept. 18 Sun - 1st day of a huge prominence

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發表於 2015-10-1 18:06:01 | 顯示全部樓層 |閱讀模式
A huge prominence appears on the SE limb.  It appears as a "jungle-like" structure with roots visible on the disc.
This huge prominence provides some spectacular dark filament in the following 2 weeks.

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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