PTS 發表於 2017-1-30 23:47:07

AR12629 - 3 day evolution-2 (2017 Jan 26)

AR12629 suddenly appears on the NE limb on Jan 25, where no activity is visible the previous day.It has evolved into a bipolar group with the leading spot splitting up.

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.
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