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AR12628 - 9 day evolution-6 (2017 Jan 25)

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發表於 2017-1-30 22:15:34 | 顯示全部樓層 |閱讀模式
AR12628 first appears as a tiny flare on the NE limb on Jan 19.  It has evolved into a large group with a large leading spot and many following sunspots.

Here are images from Jan 25.


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.
20170125095142900.jpg
AR12628-20170125100316054_cr.jpg
AR12628-20170125102352648_cr.jpg
AR12628-20170125105939469_cr.jpg
AR12628-20170125112445347_cr.jpg
AR12628-20170125142844770_cr.jpg
AR12628-20170125145414819_cr.jpg
AR12628-20170125150659445_cr.jpg
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