Solar Waterfall Prominence 04/04/06
Great disk detail on this image by Bill taken on 4th Atpril. Notice the waterfall prominence on the right side of the disc! There is a faint filament amongst the sunspots too.
Taken with Nikon Coolpix 950, through Helios 20mm Plossl, Coronado PST, on motor driven Astro-3 equatorial mount. The disc details were produced by stacking 20 images using Astrostack, each one 1/275 sec at f/6.6 (auto exposure), the prominences from 5 exposures aligned and merged using Photoshop, each one 1/40 sec at f/6.6, overexposed by 2 stops. The disc and prominence images were combined and colorized using Photoshop.