2023 March 12 Sun - Huge and beautiful quiescent prominences on NE solar limb.

[PTS]

2023 March 12 Sun - Huge and beautiful quiescent prominences on NE solar limb.

This prominences is much larger than the one on SEE limb, and is much brighter.

Sunspot count: group=11, sunspot=34, R=144

Camera : ASI1600MM Pro, cooled to -10.0C

Telescope for Ca-K:
Baader Triband C9.25 solar telescope, 235 mm f/10
Sharpstar AL80 II refractor, ED Triplet. 500 mm f/6.25 for whole-disc
Filters: Lunt Ca-K module B1200

Telescope for H-alpha:
Sharpstar AL80 II refractor, ED Triplet. 500 mm f/6.25 for whole-disc
with 2.5X barlow for close-up.
Filters: Lunt LS50T module with H-alpha B1200 blocking filter.

approximately north is up, east to the left.

[PTS]

Images in H-alpha

[Eddy So]