2023 January 05 Sun - Solar surface in Ca-K, with AR13176, AR13177, AR13180, AR13181 and possible AR1318a.

[PTS]

2023 January 05 Sun - Solar surface in Ca-K, with AR13176, AR13177, AR13180, AR13181 and possible AR1318a.

AR13176, appears at (N19W60). The large sunspot with penumbra is observed. All are embedded in plages.
AR13177 appears at (S19W26). Most of the sunspots, all embedded in plages, are observed.
AR13180 is located at (N19W00). Most of the sunspots, embedded in plages, are observed. The larger sunspots come with penumbra.
AR13181 appears at (S19E27). The larger sunspots, embedded in plages, are observed.
Meanwhile, a new AR, possibly AR1318a, appears at (S19E85). A large sunspot, with penumbra and split umbra, and 2 smaller ones are observed. All ae embedded in plages.

Sunspot count: group=5, sunspot=43, R=93

Telescope:
For close-up :Takahashi FSQ106 Quadruplet refractor.
Focal length : 530 mm f/5, with 2X barlow lens
For whole-disc: Sharpstar AL80 II refractor, ED Triplet
focal length : 500 mm f/6.25
Camera : ASI1600MM Pro, cooled to -10.0C
Filters: Lunt Ca-K Module B1200.

approximately north is up, east to the left.

[PTS]

Images of AR13177

[PTS]

Images of AR13180

[PTS]

Images of AR13181

[PTS]

Images of possible AR1318a

[Eddy So]