2023 January 28 Sun - Solar surface in Ca-K, with AR13196, AR13197, AR13198, AR13199, AR13200, AR13201, AR13202, AR13203

[PTS]

2023 January 28 Sun - Solar surface in Ca-K, with AR13196, AR13197, AR13198, AR13199, AR13200, AR13201, AR13202, AR13203 and possible AR1320a and AR1320b.

AR13196 is located at (N17W72). 1 sunspot, embedded in plages, is observed.
AR13197 appears at (N20W60). No sunspot is observed, leaving just patches of plages.
AR13198, appears at (N26W51). 1 sunspot with penumbra, and embedded in plages, is observed.
AR13199, appears at (N16W37). No sunspot is observed, leaving just some plages.
AR13200, appears at (N21W02). 2 of the sunspots, embedded in plages, are observed.
AR13201 appears at (N21E16). 1 sunspot with full penumbra and embedded in plages, is observed.
AR13202 appears at (N11W79). 2 sunspots are observed, all embedded in plages.
AR13203 appears at (N16E02). 3 of the sunspots are observed, embedded in plages.
2 new AR's are observed:
Possible AR1320a is located at (S19E70). 1 sunspot, embedded in plages, is observed.
Possible AR1320b is located at (N24W20). 3 sunspots are observed. All are embedded in plages where flares are also observed.

Sunspot count: group=8, sunspot=16, R=96

Telescope:
For close-up :Takahashi FSQ106 Quadruplet refractor.
Focal length : 530 mm f/5, with 4X barlow lens
For whole-disc: Sharpstar AL80 II refractor, ED Triplet
focal length : 500 mm f/6.25
Camera : ASI1600MM Pro, cooled to -18.0C
Filters: Lunt Ca-K Module B1200.

approximately north is up, east to the left.

[Eddy So]