2023 March 10 Sun - Solar surface in Ca-K, with AR13238, AR13239, AR13240, AR13241, AR13242, AR13245, AR13246, AR13247,

[PTS]

2023 March 10 Sun - Solar surface in Ca-K, with AR13238, AR13239, AR13240, AR13241, AR13242, AR13245, AR13246, AR13247, AR13248, AR13249, AR13250, AR13251 and possible AR1325a and AR1325b.

AR13238 is located at (N09W73). No sunspot is observed, leaving just patches of plages.
AR13239 is located at (N32W42). A sunspot with full penumbra, is observed, embedded in plages.
AR13240 appears at (S09W64). No sunspot is observed, leaving just patches of plages.
AR13241 appears at (N28W37). A sunspot with penumbra is observed, embedded in plages.
AR13242 appears at (N09W30). About 10 sunspots are observed, embedded in plages. The leading sunspot comes with penumbra.
AR13245 appears at (S24W08). A large sunspot with full penumbra and split umbra is surrounded by at least 10 smaller ones. A light bridge in the large sunspot is observed.
AR13246, appears at (N25E13). A sunspot, with penumbra and 2 umbrae, and embedded in plages, is observed.
AR13247, appears at (S24E27). 6 sunspots , embedded in plages, are observed. The leading sunspot comes with penumbra.
AR13248, appears at (N15W87). 2 sunspots, embedded in plages, are observed.
AR13249, appears at (S11E46). a sunspot, with penumbra and split umbra, and embedded in plages, is observed.
AR13250, shows up at (N20E44). 9 sunspots are observed, embedded in plages
AR13251, shows up at (S13E68). A sunspot with penumbra is observed, embedded in plages.
Meanwhile, 2 new AR's are observed.
Possible AR1325a, shows up at (N23E65). 2 tiny sunspots are observed, embedded in plages.
Possible AR1325b, shows up at (N12E70). 1 sunspot with penumbra is observed, embedded in plages.

Sunspot count: group=12, sunspot=49, R=169

Telescope: Baader Triband C9.25 solar telescope, 235 mm f/10
Sharpstar AL80 II refractor, ED Triplet. 500 mm f/6.25 for whole-disc
Camera : ASI1600MM Pro, cooled to -14.0C
Filters: Lunt Ca-K module B1200

approximately north is up, east to the left.

[PTS]

Images of AR13240, AR13242 and AR13245

[PTS]

Images of AR13246, AR13247, AR13249 and AR13250

[PTS]

Images of AR13251 and possible AR1325a and AR1325b

[Eddy So]