Sunday 15 May 2022

The Sun in Ca K-line, H-alpha and White light on May 14th 2022

Ca K-line light

A CaK PST was mounted on an iOptron Cube Pro AZ mount and an SV305 Pro monochrome camera was placed at the focus. Overlapping, 2000-frame SER files were captured of two halves of the Sun. 

Click on an image to get a closer view

Screenshot of AstroDMx Capture for Linux capturing Ca K-line SER file data


The best 65% of the frames were stacked in Autostakkert!, wavelet processed in Registax 5.1 and post-processed in the Gimp 2.10.

The Sun in Ca K-line light



H-alpha light

A Solarmax II 60, BF15 H-alpha scope was mounted on an iOptron Cube Pro AZ mount and an SV305 Pro monochrome camera was placed at the focus. Overlapping, 2000-frame SER files were captured of two halves of the Sun. The best 65% of the frames were stacked in Autostakkert!, wavelet processed in Registax 5.1 and post-processed in the Gimp 2.10.

The Sun in H-alpha light


White Light

A Panasonic Lumix DMCFZ72, 60x optical zoom bridge camera fitted with a Baader solar filter and mounted on a static tripod was used to capture 135 images of the Sun. The mages were precisely cropped in AstroCrop, Stacked in Autostakkert!, wavelet processed in Registax 5.1 and post processed in the Gimp 2.10.

The Sun in White light


The images were colourised mildly to represent the part of the spectrum being used to capture the image.

AstroCrop and AstroDMx Capture can be downloaded HERE.

AstroCrop is available for Windows and Linux. AstroDMx Capture is available for Windows, macOS, and Linux including the Raspberry Pi.