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. Please note that small differences between distances given here and using other cosmology calculators are due to differences in numerical integration, e.g. Romberg vs. midpoint, and whether the contribution from the energy density of radiation is included (it is not included here). Cosmic is licensed under the GPL.
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" |
All contents © 2003–2009 Joshua Kempner, except where otherwise noted.