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2015 Oct. 17 Sun -AR12434

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發表於 2015-10-19 22:46:15 | 顯示全部樓層 |閱讀模式
As AR12434 moves towards the central part of the disc, more details are visible.
This animation focuses on the small "ring of fire" SE of the the sunspot.  A sudden violent eruption takes place at about 10:46.  Materials surges up at high speed as evidenced by the large dark filament that surges from this ring towards south.

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-20151017094634998.jpg
AR12434-500.gif
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