Topic: natural satellite

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natural satellite. (Image by Luc Viatour, GFDL)

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natural satellite

The Columbia Encyclopedia, Sixth Edition
natural satellite celestial body orbiting a planet, dwarf planet, asteroid, or star of a larger size. The most familiar natural satellite is the earth's moon ; thus, satellites of other planets are often referred to as moons. Within the solar system the earth's moon is the largest satellite in relation to its planet and Charon is even larger relative to the dwarf planet Pluto, although neither is the largest in actual size. The largest natural satellite, Jupiter's Ganymede, is 3,268 mi (5,262 km) in diameter, and it and Saturn's Titan are both larger than the planet Mercury. In comparison... Read more
Satellite Technology
Computer Sciences Satellite Technology The world ... s first artificial satellite (the Moon is a natural satellite). Sputnik, a Russian ... that, owing to greater satellite transmission power ... geostationary environmental satellite is often shown during ... Operational Environmental Satellites (GOES) ... Read more
satellite
Britannica Concise Encyclopedia Natural object (moon) or spacecraft (artificial satellite) orbiting a larger astronomical body. Most known natural satellites orbit planet s; the Earth's Moon ... the discovery of the Galilean satellite s of Jupiter in 1610. All the ... Read more

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