Solar CaK 250122

[Merlin66]

Using the Vixen 90/1000 with the DIY CaK filter (1A bandwidth). Some issues with the internal tilt need to be addressed.
The southern zone dominated by the large sunspot AR 2934.

The northern zone has a new AR just coming into view -complex with at least two larger spots. The mid zone shows the small group AR 2935?
Some very nice proms around!!!
Enjoy.

[vineyard]

Wow, those are all beautiful.  Are the last 3 proms through the CaK filter?

Visually the 2nd one is my fave, although the clarity on the prom in the 4th 😲👍🏾👍🏾

[Merlin66]

Yes, those are all CaK proms, images from stacks of 200 from 500 slightly sharpened.
Exposures were typically 40-60ms, giving a total exposure of 10sec.
(For comparison the previous CaK proms I posted from the MiniSHG took only 0.004 sec exposure - the benefit of a very narrowband centred on the activity.)

[Pete Presland]

Very nicely captured, particularly the C-aK proms they are stunning