DistCalc For a given Z calulate the luminosity distance Check with: http://www.astro.ucla.edu/~wright/ACC.html From a fortran program by Benjamin Weiner http://mingus.as.arizona.edu/~bjw/software/ DISTCALC - calculate luminosity distances and such see David Hogg's paper, astro-ph/9905116 Ported to Perl Sept 2012 S.D.Weston - AUT University Used for my PhD Thesis