Useful Astro Links
This page contains miscellaneous links to other websites that provide particularly
interesting information related to astronomy.
General information, especially for beginners
My friend Jan Timmermans has a treasure trove full of information and tips on his "firmament" site. Highly recommended
A page explaining processing of deep sky images, dark frames, flat frames etc. is found at
Flat field correction
Dave Allmon's "simple study of flat field frames"
Thierry Legault's page on collimation is the ultimate collimation resource. See
my own collimation page may also be what you need.