Concept information
Terme préférentiel
group of galaxies
Définition(s)
- A galaxy group or group of galaxies is an aggregation of galaxies comprising about 50 or fewer gravitationally bound members, each at least as luminous as the Milky Way (about 10¹⁰ times the luminosity of the Sun); collections of galaxies larger than groups that are first-order clustering are called galaxy clusters. The groups and clusters of galaxies can themselves be clustered, into superclusters of galaxies. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Galaxy_group)
Concept(s) générique(s)
Concept(s) spécifique(s)
Synonyme(s)
- galaxy group
Traductions
-
français
URI
http://data.loterre.fr/ark:/67375/MDL-FPV65L26-Q
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