A nice pile of astronomical programs put together by ESO: http://www.eso.org/sci/data-processing/software/scisoft/ They don't have a specific RHEL or SL repo, but their FC6 one works well for me. -- Alec Habig, University of Minnesota Duluth Physics Dept. [log in to unmask] http://neutrino.d.umn.edu/~habig/