2020 January 14 Sun - surface feature in H-alpha
The flare/filament region located just to the west of the disc centre is showing low flare activity, but a thin, long filament, lying in the NE-SW direction is the main feature on the solar surface.
A few filaments also appear near the N limb.
A small active group with flare and filament shows up on the NE limb.
No sunspot is visible.
Telescope: Lunt LS35T with B600 blocking filter
Camera : ASI174MM
exposure : about 0.5 ms
Images taken between 07:00 UTC to 07:30 UTC
cropped 320x320
approximately south is up, east to the left
2020 January 14 Sun - surface feature in H-alpha
2020 January 14 Sun - surface feature in H-alpha
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- H-disc-145603.png (81.76 KiB) 已瀏覽 181 次
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