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CfA Redshift Survey

(Center for Astrophysics Redshift Survey)
(1970s-1990s surveys of galaxy redshifts)

The CfA Redshift Survey was a survey of the redshift of galaxies aiming to study the large scale structure of the universe carried out by the Center for Astrophysics (CfA), using the Smithsonian Astrophysical Observatory (SAO). Data was collected from 1977 through 1982, and then additional data in 1985 through 1995, the two sets of data known as CfA1 and CfA2.

Further reading:
CfACfA 13galaxy group