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Large Binocular Telescope (LBT)




Large Binocular Telescope
An optical telescope employing two 8.4-meter mirrors on a common mount, with their centers 14.4 meters apart, which is under construction at Mount Graham International Observatory, Arizona. Scheduled to begin operation in 2003, the LBT is a joint venture of the Steward Observatory, Arizona, Arcetri Astrophysical Observatory, Italy, and Research Corporation, a private foundation in Tucson. The LBT's twin mirrors, equipped with adaptive optics technology, will provide a light-gathering capacity equivalent to that of a single 11.8-m (39-ft.) mirror and a resolving power equivalent to that of a single 23-m (75.5-ft.) telescope. Among other things, the LBT will be used with the technique of nulling interferometry in an effort to image extrasolar planets of Jupiter size or larger in orbit around nearby stars.


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   • OBSERVATORIES AND TELESCOPES