[Maurice]

Hi

Attached are three images of the Sun in Ha, Hb & CaK wavelengths from a morning imaging session on the 27th Jan LT.

Each image is a stack of 11, 5 & 6 frames respectively.
Data selected & stacked with Autostakkert3! and processed with Astrosurface.

All frames here are 60% of original size & compressed.
100mm f/9 Skwatcher refractor + home built Spectroheliograph + ASI183MM camera

Seeing was fair, but deteriorated as the session progressed to below average by the time that CaK data were collected.

cheers
Maurice