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Sloan Digital Sky Survey
Apache Point, New Mexico

The SDSS uses a dedicated, 2.5-meter telescope on Apache Point, NM, equipped with two powerful special-purpose instruments. The 120-megapixel camera can image 1.5 square degrees of sky at a time, about eight times the area of the full moon. A pair of spectrographs fed by optical fibers can measure spectra of (and hence distances to) more than 600 galaxies and quasars in a single observation. A custom-designed set of software pipelines keeps pace with the enormous data flow from the telescope.

DETAILS  
Aperture: 2.5 meters   Latitude: 32 47 N
First light: 1998 Longitude: 105 49 W
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Elevation: 2788 meters