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2016 July 29 Sun

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發表於 2016-7-29 23:12:28 | 顯示全部樓層 |閱讀模式
The solar surface is still dominated by the long filament in the northern hemisphere, and it has become longer.While a large patch of AR-like region near the SE limb shows lots of activities, the tiny AR12570 near the E limb is developing.

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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AR-SE-20160729091558161.jpg
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filament-N-D-20160729095201622.jpg
filament-SSE-20160729092326836.jpg
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prom-NNE-20160729092530197.jpg
prom-NW-20160729092037537.jpg
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prom-NWW-20160729092916601.jpg
prom-SW-20160729091725025.jpg
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