Minor explosions in CaK

[GreatAttractor]

On Thursday I captured cute little explosions on CaK (that's a first for me). There were no corresponding X-ray flares reported by NOAA.

(Note: videos can be looped by choosing an option under right mouse button click.)

15-second intervals, 15 minutes total:

Bonus track: minor activity in Hα (also, no corresponding flare listed); 20-second intervals, 38 minutes total:

CaK setup: achro 90/600 mm, PowerMate 2.5x, Lunt CaK B600.
Hα setup: RC8, Aries ERF, LS50THa etalon.

Everything shot with Blackfly S (IMX273), processed with AS!3 and ImPPG.

Edited April 23, 2022 by GreatAttractor

[MalcolmM]

Really interesting. Thanks for posting!

Malcolm

[Pete Presland]

Excellent captures