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2015 Sept. 29 Sun -12th day of a huge filament/prominence

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發表於 2015-10-1 21:14:51 | 顯示全部樓層 |閱讀模式
The northern part of the filament has protruded out of the solar disc, producing some eruptive prominence.  The southern part is still on the disc.
AR12423 is now nearly edge-on and is producing minor eruptive jets.  The active area on the east arm is now designated AR12428 and is producing flares.
We should expect to see prominence protruding out of the disc in the coming days.

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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