Allan Sandage was Staff Member Emeritus with the Carnegie Observatories in Pasadena, California.
14 Facts About Allan Sandage
Allan Sandage determined the first reasonably accurate values for the Hubble constant and the age of the universe.
Allan Sandage was born in Iowa City, Iowa, United States.
Allan Sandage graduated from the University of Illinois in 1948.
Allan Sandage continued Hubble's research program after Hubble died in 1953.
At the time, many, especially Allan Sandage, believed that the cosmological constant was zero.
Allan Sandage performed photometric studies of globular clusters, and calculated their age to be at least 25 billion years.
Allan Sandage published two atlases of galaxies, in 1961 and 1981, based on the Hubble classification scheme.
In 1962 Allan Sandage studied the possibility of directly measuring the temporal variation of the redshift of extra-galactic sources.
Allan Sandage discovered jets erupting from the core of the so-called Cigar Galaxy.
Allan Sandage was a prolific researcher; during his career he published more than 500 papers.
In 1959, Allan Sandage married Mary Connelley, an astronomer, with whom he had two sons, David and John.
In 1983 Allan Sandage announced he had become a Christian and began to write essays on the subject of religion and science.
On November 13,2010, Allan Sandage died of pancreatic cancer at his home in San Gabriel, California.