2021 March 27 Sun - solar surface in Ca-K, with AR12810, AR12811 and AR12812
AR12810 is today located at (N18W74). Only a few highly foreshortened plages are visible.
AR12811 is today located at (N20W10). The tiny sunspots are not visible in Ca-K. Large plages patches are visible.
AR12812 is located at (N21E12). Only the leading sunspot with penumbrae is visible.
Meanwhile, an active region seems to show up on the SE limb, at (S33E53).
sunspot count: group=2, sunspot=5, R=25
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 March 27 Sun - solar surface in Ca-K, with AR12810, AR12811 and AR12812
2021 March 27 Sun - solar surface in Ca-K, with AR12810, AR12811 and AR12812
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Re: 2021 March 27 Sun - solar surface in Ca-K, with AR12810, AR12811 and AR12812
Images of AR12811 and AR12812
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Re: 2021 March 27 Sun - solar surface in Ca-K, with AR12810, AR12811 and AR12812
Images of AR12812
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