2020 November 27 Sun - solar surface in H-alpha, with AR12783, AR12784, AR12785 and AR12786

[PTS]

2020 November 27 Sun - solar surface in H-alpha, with AR12783, AR12784, AR12785 and AR12786

AR12783 remains active. A few small flare show up around the large sunspot. Filaments appear here and there, some are long and dark.

AR12784 seems not too active, but one or two small flares can be seen. A huge dark filament extends eastward.

AR12785 produces several small flares today. The large sunspot dominates the leading group. A huge filament extends southward from just east of the sunspot, and is dispersed as a huge dark patch at its end.

AR12786 is a truly complex and huge active region, with flares all over its arena. Apart from the breaking up of the large sunspot, many smaller ones are produced around the flares.

sunspot count: group=3, sunspot=13, R=43

Telescope: Lunt LS50T with B1200 blocking filter, and 2X barlow
Camera : ASI174MM
exposure: 0.80 ms
approximately north is up, east to the left

[PTS]

Images of AR12784

[PTS]

Images of AR12785 and AR12786

[PTS]

more

[Eddy So]