H-alpha activity on the Sun

A Solarmax II 60, BF15 H-alpha scope was mounted on a Celestron AVX mount. A DMK21AU04.AS was fitted with the lens from a Cemax x2 Barlow on the camera nosepiece.

1500 frame SER files were capture using AstroDMx Capture for Linux, exposed for the disk and for the prominences.

Click on an image to get a closer view.

Screenshot of AstroDMx Capture for Linux capturing a SER file exposed for the prominences

Screenshot of AstroDMx Capture for Linux capturing a SER file exposed for the disk

The best 90% of frames in the SER files were stacked in Autostakkert!, wavelet processed in Registax 6, post processed and combined in the Gimp 2.10.

The data were inverted to give another way of looking at the image.

The DMK camera was fitted in a Televue 3x Barlow and a 1500-frame SER file exposed for the prominences was captured with AstroDMx Capture for Linux.

DMK with 3x Teleview Barlow

Screenshot of AstroDMx Capture for Linux capturing a SER file exposed for the prominences

The best 90% of the frames in the SER file were stacked in Autostakkert, wavelet processed in Registax 6 and post processed in the Gimp 2.10. A virtual occultation disk was placed over the overexposed disk so that the prominences can be better seen.

Steve Wainwright