The whole disc image was taken with the Lunt 50THA and Altair Hypercam 178. Best 20% of 1000 frames. Sharpened in Imppg and then processed to bring out prominences and coloured using Photoshop CS3.
The others are with a Quark, 80mm acromat and the Altair Hypercam 174 because of the larger pixel size. Best 10% of 1000 frames. Again sharpened in Imppg and processed in Photoshop CS3. I also unsharpmasked them at the end to increase the detail.
Click on an image to get a closer view
Anne Startup
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