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 26.
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.
AR12628 - 9 day evolution-7 (2017 Jan 26)
AR12628 - 9 day evolution-7 (2017 Jan 26)
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- AR12628-20170126144529010_cr.jpg (88.46 KiB) 已瀏覽 393 次
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- AR12628-20170126143941144_cr.jpg (86.23 KiB) 已瀏覽 393 次
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- AR12628-20170126142748699_cr.jpg (85.56 KiB) 已瀏覽 393 次
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- AR12628-20170126113122364_cr.jpg (89.89 KiB) 已瀏覽 393 次
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- AR12628-20170126112300475_cr.jpg (86.24 KiB) 已瀏覽 393 次
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- AR12628-20170126110657089_cr.jpg (89.12 KiB) 已瀏覽 393 次
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- AR12628-20170126105443322_cr.jpg (90.81 KiB) 已瀏覽 393 次
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- AR12628-20170126102941850_cr.jpg (83.61 KiB) 已瀏覽 393 次
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- 20170126101903547.jpg (87.19 KiB) 已瀏覽 393 次
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