Quark and Hypercam 174M on an 80mm f/7 refractor.
Best 10% of 1000 frames stacked for each image. Seeing not very stable. Wavelets done in Registax for the newer sunspot and IMPPG for the older one. The other two images are of prominences, again processed in different ways.
Click on an image to see a closer view
Anne Startup
Sketch using a Quark with the 80m f7 refractor
Jim Startup
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