2023 March 11 Sun - Solar surface in Ca-K, with AR13239, AR13240, AR13241, AR13242, AR13245, AR13246, AR13247, AR13249,

[PTS]

2023 March 11 Sun - Solar surface in Ca-K, with AR13239, AR13240, AR13241, AR13242, AR13245, AR13246, AR13247, AR13249, AR13250, AR13251, AR13252 and possible AR1325a.

AR13239 is located at (N32W60). A sunspot with full penumbra, is observed, embedded in plages.
AR13240 appears at (S09W80). No sunspot is observed, leaving just some plages.
AR13241 appears at (N28W51). A sunspot with penumbra is observed, embedded in plages.
AR13242 appears at (N10W47). About 3 sunspots are observed, embedded in plages. The leading sunspot comes with full penumbra.
AR13245 appears at (S23W21). A large sunspot with full penumbra and split umbra is surrounded by at least 10 smaller ones. All are embedded in plages.
AR13246, appears at (N25W03). A sunspot, with penumbra and 2 umbrae, and embedded in plages, is observed.
AR13247, appears at (S23E13). A sunspot with penumbra and split umbra is followed by at least 10 smaller ones. All are embedded in plages.
AR13249, appears at (S11E31). a sunspot, with penumbra and split umbra, and embedded in plages, is observed.
AR13250, shows up at (N20E29). About 11 sunspots are observed, embedded in plages.
AR13251, shows up at (S13E52). A sunspot with penumbra and split umbra is observed, embedded in plages.
AR13252, shows up at (N16E57). 1 sunspot with penumbra is observed, embedded in plages.
Meanwhile, a new AR, possibly AR1325a, shows up at (N22E45). A sunspots is observed, embedded in plages.

Sunspot count: group=11, sunspot=45, R=155

Telescope: 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.

[Eddy So]