Image Stacking in Astronomy

Bob pointed me to a Blog post about a splendid image of Saturn made by a hobby astronomer. He takes video footage with a CCD (basically a black and white digital camera) at his telescope and changes RGB filters in the light path.
Then the images are stacked and processed by a lot of different programs.
The Blog is on Periodic Videos which also hosts this “have to click” for every Chemistry Geek.

And if that was enough to read for you – here is the video from the Blog.