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Allan Rex Sandage (June 18, 1926 – November 13, 2010) was an American astronomer. He was Staff Member Emeritus with the Carnegie Observatories in Pasadena, California. He determined the first reasonably accurate values for the Hubble constant and the age of the universe.
Allan Rex Sandage (Iowa City, 18 giugno 1926 – Los Angeles, 13 novembre 2010) è stato un astronomo statunitense. Si è laureato all'Università dell'Illinois nel 1948. Nel 1953 ricevette il Ph.D. dal California Institute of Technology. In seguito Sandage iniziò a lavorare all'Osservatorio di Monte Palomar.
Allan Sandage was an American astronomer who led an extensive effort to determine Hubble’s constant, the rate at which the universe is expanding. He also did important early work on quasi-stellar radio sources (quasars), very distant starlike objects that can be strong emitters of radio waves.
Allan Sandage spent long nights leading observational cosmology until studies of the cosmic microwave background led to a new dawn. For 60 years, he surveyed and measured the universe. He died on 13 November at age 84.
17 nov 2010 · Allan R. Sandage, who spent his life measuring the universe, becoming the most influential astronomer of his generation, died Saturday at his home in San Gabriel, Calif. He was 84.
15 dic 2010 · Astronomer who measured expansion rate of the Universe. Allan Rex Sandage was one of the most prolific and influential astronomers of the second half of the twentieth century.
17 mag 2016 · Pasadena, CA — Carnegie’s Allan Sandage, who died in 2010, was a tremendously influential figure in the field of astronomy. His final paper, published posthumously, focuses on unraveling a surprising historical mystery related to one of his own seminal discoveries.
