kempner.net

Cosmology Calculator

This cosmology calculator uses the program cosmic to calculate a number of parameters for an object at a redshift z, using the given cosmology. The output of cosmic is shown below the form. Cosmic is licensed under the GPL.

Cosmological parameters
Source parameters

H0 = 71, Ωm = 0.27, ΩΛ = 0.73 (q0 = -0.595)
At z = 0.1

  age of the Universe at z  =  12.3849 Gyr
  lookback time to z  =  1.28584 Gyr
  angular diameter distance dA  =  375.899 Mpc
  luminosity distance dL  =  454.838 Mpc
  comoving radial distance dC  =  413.489 Mpc
  comoving volume out to z  =  0.296129 Gpc3
  critical density at z  =  1.0318e-29 g cm-3
  1"  =  1.822411 kpc
  1 kpc  =  0.548724"