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Project Horizon
Project Horizon was a study to determine the feasibility of constructing a scientific / military base on the Moon. On June 8, 1959, a group at the Army Ballistic Missile Agency (ABMA) produced for the U.S. Department of the Army a report entitled ''Project Horizon, A U.S. Army Study for the Establishment of a Lunar Military Outpost''. The project proposal states the requirements as:
"The lunar outpost is required to develop and protect potential United States interests on the moon; to develop techniques in moon-based surveillance of the earth and space, in communications relay, and in operations on the surface of the moon; to serve as a base for exploration of the moon, for further exploration into space and for military operations on the moon if required; and to support scientific investigations on the moon.[Wernher von Braun, head of ABMA, appointed Heinz-Hermann Koelle to head the project team at Redstone Arsenal.]
Plans called for 147 early Saturn A-class rocket launches to loft spacecraft components for assembly in low Earth orbit at a spent-tank space station.
A lunar landing-and-return vehicle would have shuttled up to 16 astronauts at a time to the base and back.
Horizon never progressed past the feasibility stage in an official capacity.
==Location==
Rocket-vehicle energy requirements would have limited the location of the base to an area of 20 deg latitude/longitude on the Moon, from ~20° N, ~20° W to ~20° S, ~20° E. Within this area, the Project selected three particular sites:
* northern part of Sinus Aestuum, near the Eratosthenes crater
* southern part of Sinus Aestuum near Sinus Medii
* southwest coast of Mare Imbrium, just north of the Montes Apenninus mountains
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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