2022 August 16 Sun - solar surface in Ca-K, with AR13074, AR13075, AR13076, AR13078, AR13079, AR13080, AR13081 and possi

[PTS]

2022 August 16 Sun - solar surface in Ca-K, with AR13074, AR13075, AR13076, AR13078, AR13079, AR13080, AR13081 and possible AR1308a, AR1308b and AR1308c.

AR13074 is located at (S17W68). The split of the sunspot is now complete. The 2 sunspots come with penumbra, and are surrounded by patches of plages.
AR13075 is located at (N18W62). No sunspot is observed, leaving patches of plages.
AR13076 is located at (N16W40). Most of the sunspots are observed, all embedded in plages.
AR13078 is located at (S24W09). A huge eruptive flare is observed at the north tip of the sunspots. Flares are also observed between the sunspots.
AR13079 is located at (S11W56). Many of the sunspots, embedded in plages, are observed. Flares are observed at the leading end.
AR13080 is located at (N13W67). The sunspots are observed, embedded in plages where flares are also observed.
AR13081 is located at (N12E14). Most of the sunspots are observed, embedded in a huge patch of plages. The larger sunspots come with penumbra and split umbra.
Meanwhile, 3 new AR's show up on the solar disc:
Possible AR1308a is located at (S24W20). Sunspots are observed at the leading and following end of the plages, where some flares are also observed.
Possible AR1308b is located at (N27E60). The sunspots are observed, embedded in plages. Flares are observed.
Possible AR1308c is located at (S09E55). The sunspots are observed, embedded in plages.

Sunspot count: group=9, sunspot=76, R=166

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 AR13075 and AR13076

[PTS]

Images of AR13078 and possible AR1308a

[PTS]

Images of AR13080

[PTS]

Images of AR13081

[PTS]

Images of possible AR1308b

[PTS]

Images of possible AR1308c

[Eddy So]