Recently I managed to image sunspot AR2005 with the Skywatcher ED100. Unfortunately the seeing was rather poor and hence that was limiting what I could achieve with a single shot.

Clearly the next step was to try stacking of images in Registax 6. Hence I processed my images with Capture One Pro 8 into .PNG format, as Registax does not work with Olympus (or Sony) RAW files.

I used 18 of the best images I had obtained and stacked them to produce the image below:

From the above image, I can tell that the seeing was not as good as an image I had previously managed (single shot with excellent seeing – see below).

Hopefully I will get a chance to catch the interesting sunspots when the seeing is much better. I’m not sure if stacking will allow me to get an even better image than the one above.

Boon