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AR12627 - 9 day evolution-1 (2017 Jan 19-20)

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發表於 2017-1-30 17:15:19 | 顯示全部樓層 |閱讀模式
AR12627 first appear as a tiny flare on the NE limb on Jan 19.  It has evolved into a large group with many sunspots and flares. Here are images from Jan 19-20.


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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