2021 September 30 Sun - solar surface in H-alpha, with flares in AR12877
AR12877 is located at (S16W44). The 2 large sunspots are visible. Penumbral fibrils from the large sunspots are visible. Several flares are observed, so are arch-filaments connecting magnetic center.
Sunspot count: group=5, sunspot=30, R=80
Telescope: Lunt LS50T with B1200 blocking filter + 2X barlow
Camera : ASI1600MM Pro, not cooled.
approximately north is up, east to the left
2021 September 30 Sun - solar surface in H-alpha, with flares in AR12877
2021 September 30 Sun - solar surface in H-alpha, with flares in AR12877
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