2021 January 21 Sun - solar surface in white-light, with AR12797 and AR12798
The sky is 99% cloud-covered today and I go for a walk along the trails of Mt. Parker. Near the end of my walk, the Sun shows up and I hurry home to get some solar images before sunset.
I am not surprised that NOAA splits AR12797 into AR12797 and AR12798 as both H-alpha and Ca-K observations in the past few days point to such.
AR12797 is located at (S18E32) and AR12798 is just east of it at (S17e41).
While AR12798 is clearly a Class-C bipolar group, with at least 4 sunspots, the classification for AR12797 is a bit difficult. It still looks like being formed from splitting of a single large sunspot. However, we can now clearly see 2 sunspots, both with mature penumbrae, thus it is now a Class-G bipolar group.
sunspot count: group=2, sunspot=6, R=26
Telescope: Celestron C5, 127mm f/10 Schmidt-Cassegrain
Camera : ASI1600MM Pro, not cooled.
focal length : 1250 mm f/10
Filters: Baader Solar Film 5.0+ Baader Planetarium G-band continuum.
approximately north is up, east to the left
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