Main Page | See live article | Alphabetical index Thebe Discovery Discovered by S. Synnott Discovered in 1979 Orbital characteristics Mean radius 221,900 km Eccentricity 0.0018 Revolution period 16h 11.3m Inclination 1.070° Is a satellite of Jupiter Physical characteristics Equatorial diameter 110(×90) km Surface area km2 Mass 7.557×1017 kg Mean density 1.45 g/cm3 Surface gravity 0.0201m/s2 Rotation period 16h 11.3m Axial tilt 0.001° Albedo 0.047 Surface temp min mean max K K K Atmospheric pressure 0 kPa Thebe (pronounced "THEE bee") is the fourth of Jupiter's known satellites by distance from the planet. It was discovered by Voyager 1 and was first given the temporary name 1979J2. It was later named after a nymph who was the daughter of the river god Asopus. There appear to be at least three or four very large impact craters on the satellite (very large in the sense that each of these craters is roughly comparable in size to the radius of Thebe). Little else is known about it. This image of Thebe was taken by NASA's Galileo spacecraft on January 4, 2000, at a range of 193,000 kilometers (about 120,000 miles). This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.