2022 May 05 Sun - solar surface in Ca-K, with AR12997, AR12999, AR13000, AR13001, AR13002, AR13003, AR13004, AR13005 and

[PTS]

2022 May 05 Sun - solar surface in Ca-K, with AR12997, AR12999, AR13000, AR13001, AR13002, AR13003, AR13004, AR13005 and AR13006.

AR12997 is located at (N13W86). A small patch of plages is visible.
AR12999 is located at (S21W67). 1 sunspot with penumbra, embedded in plages, is observed.
AR13000 is located at (S17W25). Patches of plages are visible.
AR13001 is located at (S31W15). 1 sunspot with penumbra, embedded in plages, is observed.
AR13002 is located at (N13W46). Strips of plages are visible.
AR13003 is located at (S23W07). Not much is visible.
AR13004 is located at (S15W03). Most of the 25 sunspots are observed. The leading and following sunspots have penumbra and fragmented umbra. Flares are observed, mostly at locations between the sunspots. The flares become more active at about 02:25 UTC, leading to eruption at 02:33 UTC.
AR13005 is located at (N20W09). A patch of bright plages is visible.
AR13006 shows up at (S27E62) The larger of the 6 sunspots, all embedded in plages, are observed.

Sunspot count: group=5, sunspot=39, R=89

Telescope: Maxvision APO refractor, ED Triplet
Camera : ASI1600MM Pro, not cooled
focal length : 700 mm f/7
Filter: Lunt Ca-K Module B1200
approximately north is up, east to the left.

[PTS]

Images of AR13000

[PTS]

Images of AR13001

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Images of AR13002 and AR13004

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More images of AR13004

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More images of AR13004

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Images of AR13005 and AR13006

[Eddy So]