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
http://www.thefirmament.nl
Image Processing
A page explaining processing of deep sky images, dark frames, flat frames etc. is found at
http://astrosurf.com/re/process.html
Flat field correction
Dave Allmon's "simple study of flat field frames"
http://www.astrosurf.com/dallmon/html/flatframes.html
Collimation
Thierry Legault's page on collimation is the ultimate collimation resource. See
http://perso.club-internet.fr/legault/collim.html, but
my own collimation page may also be what you need.