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AR12628 - 9 day evolution-4 (2017 Jan 23)

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發表於 2017-1-30 22:03:03 | 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 23.


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.
20170123110005337.jpg
AR12628-20170123112524741_cr.jpg
AR12628-20170123143148683_cr.jpg
AR12628-20170123144503866_cr.jpg
AR12628-20170123145014354_cr.jpg
AR12628-20170123150727373_cr.jpg
AR12628-20170123151527367_cr.jpg
AR12628-20170123152358163_cr.jpg
AR12628-20170123153357224_cr.jpg
AR12628-20170123153540413_cr.jpg
AR12628-20170123153637669_cr.jpg
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