Sunspot AR2738 imaged on 13/4/2019 from Lichfield – Daystar Calcium H Filter

I like this image – Calcium H filter – I used Astra Image software to do a little processing. This is a single image – my attempts at stacking went wrong…… What I really like is the white areas around the sunspot that are shown with a calcium filter are visible here. I followed the … Continue reading Sunspot AR2738 imaged on 13/4/2019 from Lichfield – Daystar Calcium H Filter