I wasn't expecting to see any Sun this morning, so when the sky turned blue I quickly got on the case with my 72mm refractor to capture at least one full-disk image in CaK. Yesterday I completely failed in Ha, struggling to get on band during the short session. I didn't want to risk doing the same this morning, so CaK it was. However, I could see the sky around me changing as each minute passed, becoming more hazy and then cloudy, as if from nowhere, so again my time on the scope was limited and the sky in front of me lost clarity. Never mind. Better than nothing.
Altair 72mm f6 fitted with a Lunt B600 CaK module.
1.5x Barlow with K-line and Omega filters fitted to the nose.
Basler acA2440-75um
Genika Astro Image capture
AS!3 stacking
ImPPG deconvolution/sharpening.
PixInsight colour
20190203_CaK_FD by
Stuart Green, on Flickr
20190203_CaK_FD_colour by
Stuart Green, on Flickr
Back to total grey now......
Thanks for looking.
Stu.