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• Sloan Digital Sky Survey DR6 Subset

  Offsite — The Sloan Digital Sky Survey is the most ambitious astronomical survey ever undertaken. The survey has mapped one-quarter of the entire sky in detail, determining the positions and absolute brightnesses of hundreds of millions of celestial objects. It has also measured the distances (redshifts) to more than a million galaxies and quasars. This is a small (~ 5%) subset of ...