2022 September 15 Sun - solar surface in Ca-K, with AR13096, AR13098, AR13099, AR13100, AR13102 and possible AR1310a.

[PTS]

2022 September 15 Sun - solar surface in Ca-K, with AR13096, AR13098, AR13099, AR13100, AR13102 and possible AR1310a.

AR13096 is located at (N18W33). Huge patches of plages are observed.
AR13098 is located at (N18W65). The larger sunspots come with penumbra and split umbra. All are embedded in huge patches of plages. Flares are observed.
AR13099 is located at (N12W24). Huge patches of plages are observed.
AR13100 is located at (S25W02). The leading sunspot, at the leading end of the plages, comes with penumbra and split umbra. The smaller sunspots are at the following end.
AR13102 is located at (S26E46). The large sunspots come with broken penumbra and split umbra. Huge patches of plages are following. A flare is observed.
A new AR, possibly AR1310a is located at (S16E17). Only 1 sunspot is observed, at the leading end of the plages.

Sunspot count: group=4, sunspot=41, R=81

Telescope: Maxvision APO refractor, ED Triplet
Camera : ASI1600MM Pro, not cooled
focal length : 700 mm f/7
Filter: Lunt Ca-K Module B1200
approximately north is up, east to the left.

[PTS]

Images of AR13098

[PTS]

Images of AR13100

[PTS]

Images of AR13102

[PTS]

Images of possible AR1310a

[Eddy So]