Physics Ontology

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H0H_0
Fundamental Constants

Hubble Constant

Relates recession velocity of galaxies to their distance (Hubble's law).

SI unit

per second (s⁻¹)

Dimension: [ T−1 ][\,T^{-1}\,]

Other units

  • per second (s⁻¹)
  • km per second per megaparsec (km/s/Mpc)×3.24e-20

Defined value

Fixed constant from the A-level data sheets.

2.10 × 10-18 s⁻¹

A-level value (~65 km/s/Mpc)

  • km per second per megaparsec (km/s/Mpc): 6.48 × 101 km/s/Mpc

Appears in 1 equation

Hubble's Law
v=H0dv = H_0 d

Associated scientists

Edwin Hubble