Large Binocular Telescope Interferometer


LBTI Missions & Center Operational


The Large Binocular Telescope Interferometer, or LBTI, is a ground-based instrument connecting two 8-meter class telescopes on Mount Graham in Arizona to form the largest single-mount telescope in the world. The interferometer is designed to detect and study stars and planets outside our solar system.

Unlike other interferometers, it also provides high-resolution images of faint objects over a wide field-of-view, including galaxies in the Hubble Deep Field with 10 times the Hubble resolution.

IPAC's role:

NExScI at IPAC provides the solicitation and selection and data archiving for the NASA portion of time on the Large Binocular Telescope Interferometer (LBTI) instrument, mounted on the Large Binocular Telescope (LBT).


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