Fr.: variable de Hubble-Sandage
A type of highly luminous → blue supergiant star with variable light, first discovered in the M31 and M33 galaxies; also called → S Doradus stars. They are now believed to be part of the class of → Luminous Blue Variable stars.
→ Hubble; Allan Rex Sandage (1926-2010), American cosmologist.
normalized Hubble parameter
pârâmun-e Hubble-e hanjârvaridé
Fr.: paramètre Hubble normalisé