2021 January 22 Sun - solar surface in Ca-K, with AR12797, AR12798 and possible AR12799
AR12797 is relatively quiet. The 2 sunspots, with their penumbrae, are surrounded by "rings of fire". Micro-flares are visible on the rings.
AR12798 very active in the past 2 days, and continues to be so. Bright flares pop up and sunspots are visible.
A small active region (possibly AR12799) appears in the northern hemisphere, at (N23W18). Several flares show up, together with sunspots.
sunspot count: group=3, sunspot=10, R=40
Telescope: Sharpstar AL-80 II, 8 cm f/6.25 APO refractor
Camera : ASI174MM
focal length : 500 mm f/6.25
filter: Lunt Ca-K Module B1200
approximately north is up, east to the left
2021 January 22 Sun - solar surface in Ca-K, with AR12797, AR12798 and possible AR12799
2021 January 22 Sun - solar surface in Ca-K, with AR12797, AR12798 and possible AR12799
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Re: 2021 January 22 Sun - solar surface in Ca-K, with AR12797, AR12798 and possible AR12799
More images from observation in the afternoon
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Re: 2021 January 22 Sun - solar surface in Ca-K, with AR12797, AR12798 and possible AR12799
Images of possible AR12799
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