2023 May 31 Sun - Solar surface in Ca-K, with AR13311, AR13312, AR13313, AR13315, AR13316, AR13317, AR13318, AR13319, AR

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2023 May 31 Sun - Solar surface in Ca-K, with AR13311, AR13312, AR13313, AR13315, AR13316, AR13317, AR13318, AR13319, AR13320, AR13321, AR13322 and possible AR1332a and AR1332b.

AR13311 shows up at (N21W81). 2 sunspots, inside penumbra, are observed, embedded in plages. A flare with jets is observed.
AR13312 shows up at (S25W75). No sunspot is observed, leaving just patches of plages.
AR13313 is located at (N24W67). 1 sunspot with full penumbra is observed, embedded plages.
AR13315 is located at (S17W49). Most of the sunspots are observed, embedded in plages where flares are also observed.
AR13316 is located at (N08W21). 1 sunspot is observed, at the leading end of the plages.
AR13317, is located at (N27W55). About 5 sunspots are observed, embedded in plages.
AR13318, is located at (N25W47). About 4 sunspots are observed, embedded in plages. The leading and following sunspots come with penumbra.
AR13319 is located at (S18W16). Most of the sunspots are observed, embedded in plages where many flares are observed.
AR13320, is located at (N09E57). 2 sunspots are observed, embedded in plages. The leading sunspot comes with penumbra.
AR13321, is located at (S16E65). 1 large sunspot with full penumbra and split umbra is observed, embedded in plages where flares are also observed.
AR13322 is located at (N16W39). 5 sunspots are observed, embedded in plages.
Meanwhile, 2 new AR's are observed:
Possible AR1332a, is located at (S08E85). 1 sunspot with full penumbra is observed, embedded in plages and some rising plasma.
Possible AR1331b is located at (N30E67). 2 sunspots are observed, embedded in plages.

Sunspot count: group=12, sunspot=45, R=165

Telescope: Baader Triband C9.25 solar telescope, 235 mm f/10 with Sharpstar AL80 II refractor, ED Triplet. 500 mm f/6.25 for whole-disc
Camera : ASI1600MM Pro, cooled to -4.0C.
Filters: Lunt Ca-K module B1200

approximately north is up, east to the left.

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Images of AR13312 and AR13315

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Images of AR13316

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Images of AR13317 and AR13318

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Images of AR13319

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Images of AR13320

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Images of AR13321 and possible AR1332a

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Images of AR13322

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Images of possible AR1332b

[Eddy So]