2023 April 28 Sun - Solar surface in white-light, with AR13284, AR13285, AR13286, AR13287, AR13288, AR13289, AR13290, AR

[PTS]

2023 April 28 Sun - Solar surface in white-light, with AR13284, AR13285, AR13286, AR13287, AR13288, AR13289, AR13290, AR13291, AR13292 and possible AR1329a and AR1329b.

AR13284, shows up at (S08W71). No sunspot is observed, leaving just patches of faculae.
AR13285, shows up at (S19W13). A large sunspot with full penumbra and split umbra, together with 5 small ones, are observed.
AR13286, shows up at (S11W06). About 6 sunspots are observed, embedded in faculae.
AR13287, shows up at (S25E17). No sunspot is observed, leaving just patches of faculae.
AR13288, shows up at (S23W11). About 15 sunspots are observed, embedded in faculae. Both leading and following sunspots come with penumbra and split umbra.
AR13289, shows up at (N20E47). About 5 sunspots are observed, all embedded in faculae. The larger ones come with penumbra.
AR13290, shows up at (N24W63). No sunspot is observed, leaving just patches of faculae.
AR13291, shows up at (N09W06). About 12 sunspots are observed, embedded in faculae.
AR13292, shows up at (N14E58). About 12 sunspots are observed, embedded in faculae.
Meanwhile, 2 new AR's are observed:
Possible AR1329a, shows up at (N18W18). 1 small sunspot is observed.
Possible AR1329b, shows up at (S15W30). 1 small sunspot is observed.

Sunspot count: group=8, sunspot=48, R=128

Telescope: Baader Triband C9.25 solar telescope, 235 mm f/10 with Meade 0.63X reducer for whole-disc.
Camera : ASI1600MM Pro, cooled to -8.0C.
Filters: Baader Solar Film 3.8.

approximately north is up, east to the left.

[PTS]

Images of AR13285, AR13286 and AR13288

[PTS]

Images of AR13289 and AR13292

[PTS]

Images of AR13291

[PTS]

Images of possible AR1329a and AR1329b

[Eddy So]