2020 October 17 Sun - Solar surface in H-alpha, with AR12775 and AR12776
AR12775 is not active in H-alpha. Plages and filaments are visible.
AR12776 is very active, with bright flares and dark filaments. The sunspot is also visible in H-alpha.
Sunspot count: group=1. sunspots=2, R=12
Telescope: Lunt LS50T with B600 blocking filter
Camera : ASI174MM
exposure: 0.80 ms
approximately south is up, east to the left
2020 October 17 Sun - Solar surface in H-alpha, with AR12775 and AR12776
2020 October 17 Sun - Solar surface in H-alpha, with AR12775 and AR12776
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