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2016 Dec 31 Sun - farewell to 2016

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發表於 2016-12-31 21:56:12 | 顯示全部樓層 |閱讀模式
A lone active region (AR12622) appears near the west limb today.  
A few prominences show up on the limb near AR12622, and on the NE, SEE (very faint but changes) and SE limb.

A summary for 2016:
Days with observation - 94 (due to structural work on the roof, observation could not start until June 21)
Total images: ~437000 (~1.66 TB of data)


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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prom-SW-20161231120025004.jpg
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