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2016 Oct 16 Sun

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發表於 2016-10-17 15:46:15 | 顯示全部樓層 |閱讀模式
Observation was done through thick haze and thin clouds, resulting in low-contrast images.  Exposures were unusually long, up to 500 ms.A brief eruption was observed on the NWW limb where AR12599 has just turned to the backside.

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.


20161016143632575.jpg
20161016143649426.jpg
AR12600-20161016150212066.jpg
AR12600-20161016150357226.jpg
AR12600-20161016150712657.jpg
AR12602-20161016145701493.jpg
AR12602-20161016150754456.jpg
AR12602-20161016150829949.jpg
Filament-E-20161016150045605.jpg
Filament-E-20161016150924720.jpg
prom-NNW-20161016151526150.jpg
prom-NW-20161016150557323.jpg
prom-NWW-20161016150321802.jpg
prom-SE-20161016145915163.jpg
prom-SE-20161016145931854.jpg
prom-SE-20161016151033925.jpg
AR12599-eruption-A.gif
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