Vatican Advanced Technology Telescope

Vatican Advanced Technology Telescope
	The Vatican Advanced Technology Telescope (VATT)
Alternative names	Thomas J. Bannan Astrophysics Facility
Part of	Mount Graham International Observatory
Location(s)	Graham County, Arizona
Coordinates	32°42′05″N 109°53′31″W / 32.7013°N 109.892°W
Organization	Vatican Observatory
Observatory code	290
Altitude	3,178 m (10,427 ft)
Telescope style	Gregorian telescope; optical telescope
Diameter	1.83 m (6 ft 0 in)
Secondary diameter	0.38 m (1 ft 3 in)
Focal length	16.48 m (54 ft 1 in)
Mounting	altazimuth mount
Website	www.vovatt.org
	Location of Vatican Advanced Technology Telescope
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The Alice P. Lennon Telescope and its Thomas J. Bannan Astrophysics Facility, known together as the Vatican Advanced Technology Telescope (VATT), is a Gregorian telescope observing in the optical and infrared situated on Mount Graham in southeast Arizona, United States. Measuring 1.83 m (6 ft 0 in) wide, the telescope achieved its first light in 1993.

VATT is part of the Mount Graham International Observatory and is operated by the Vatican Observatory, one of the oldest astronomical research institutions in the world, in partnership with The University of Arizona.