Hubble Law Radial Velocity Calculator: Explore the Expanding Universe

Calculate Galactic Radial Velocity

A commonly accepted value is around 67-74 km/s/Mpc.
Distance to the galaxy in megaparsecs (Mpc).

Unravel the mysteries of cosmic expansion with our Hubble Law Radial Velocity Calculator. This essential astronomy tool helps you quickly determine the speed at which distant galaxies are receding from us, a cornerstone of modern cosmology. Input the Hubble Constant and proper distance to instantly calculate radial velocity.

Formula:

The Hubble Law describes the relationship between a galaxy's distance and its radial velocity (how fast it is moving away from us due to the expansion of the universe).

Formula:

v = H0 * D

Where:

  • v = Radial Velocity (in kilometers per second, km/s)
  • H0 = Hubble Constant (in kilometers per second per megaparsec, km/s/Mpc)
  • D = Proper Distance to the galaxy (in megaparsecs, Mpc)

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