Concept information
Terme préférentiel
Hubble constant
Définition
- The Hubble constant (H₀) is a measure of the present expansion rate of the universe, in units of kilometers per second per megaparsec (km/s/Mpc). It relates the apparent recession velocity of a galaxy, or galaxy cluster, to its distance from the Milky Way. The larger the Hubble constant, the younger the universe. (Encyclopedia of Science, by David Darling, https://www.daviddarling.info/encyclopedia/H/Hubble_constant.html)
Concept générique
Synonyme(s)
- Hubble parameter
Traductions
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français
URI
http://data.loterre.fr/ark:/67375/MDL-NV7CM6R0-9
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