AstroMy™ Cosmology Calculator


Input

Flat?
H0
Ωm
ΩΛ
z

Output

H0={{H0}} km/s/Mpc, Ωm={{omegaM}}, ΩΛ={{omegaVac.toFixed(3)}}, z={{z}}
ΩK={{omegaK.toExponential(3)}}, ΩR={{omegaR.toExponential(3)}}
Since the Big Bang, it is now
{{AGE}}
Gyr
The age at redshift z was
{{ZAGE}}
{{ZAGE_UNIT}}
The light travel time was
{{TIME_AFTER_Z}}
Gyr
The comoving radial distance is
{{COMOVING_R_MPC}}
Mpc
{{COMOVING_R_GLY}}
Gly
The comoving volume within redshift z is
{{COMOVING_V_GPC}}
Gpc3
The angular size distance DA is
{{DA_MPC}}
Mpc
{{DA_GLY}}
Gly
The angular scale is
{{ANGULAR_SCALE_KPC}}
kpc/''
The luminosity distance DL is
{{DL_MPC}}
Mpc
{{DL_GLY}}
Gly
1 Gly = 1,000,000,000 light years or 9.461×1026 cm.
1 Gyr = 1,000,000,000 years.
1 Mpc = 1,000,000 parsecs = 3.08568×1024 cm, or 3,261,566 light years.