Welcome to Apache Point Observatory

Apache Point Observatory is located in the Sacramento Mountains of south-central New Mexico. Four telescopes are currently operated: The Astrophysical Research Consortium (ARC) 3.5-m Telescope, the Sloan Foundation (Sloan Digital Sky Survey, or SDSS) 2.5-m Telescope, the New Mexico State University 1.0-m Telescope, and the ARC Small Aperture 0.5-m Telescope. Stateof-the-art optical and mechanical designs optimize each telescope for their specific purpose. This includes wide-field imaging and spectroscopy, high-precision tracking and pointing, and wide wavelength coverage.

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Our Telescopes

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3.5m Telescope

The 3.5m Telescope is operated by the Astrophysical Research Consortium (RAC) and managed through New Mexico State University (NMSU)

2.5m Telescope

Sloan Foundation Telescope, home of the Sloan Digital Sky Survey (SDSS)

1m Telescope

New Mexico State University operated telescope

0.5m Telescope Arcsat

The Astrophysical Research Consortium Small Aperture Telescope (ARCSAT)