2020 August 11 Sun - prominences on the NW solar limb in H-alpha

[PTS]

2020 August 11 Sun - prominences on the NW solar limb in H-alpha

Several prominences are visible on the NW limb. Most are very faint, and the only bright one is very low.
No Ca-K image is taken.

Sunspot count: group=1. sunspots=2, R=12

For H-alpha images:
Telescope: Lunt LS35T with B600 blocking filter
Camera : ASI174MM
exposure: 5.5 ms

approximately south is up, east to the left

[Eddy So]