Areostationary orbit

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An areostationary orbit (abbreviated ASO) is a circular areo­synchronous orbit in the Martian equatorial plane about 17,000 km (11,000 mi) above the surface, any point on which revolves about Mars in the same direction and with the same period as the Martian surface. Although no artificial satellites have been placed so far in this orbit, it is of interest to some scientists foreseeing a future tele­communications network for the exploration of Mars. Areo­stationary orbit is a concept similar to Earth's geo­stationary orbit.

The prefix areo- derives from Ares, the ancient Greek god of war and counterpart to the Roman god Mars, with whom the planet was identified. The modern Greek word for Mars is Άρης (Áris).

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