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Metis, in astronomy

(Encyclopedia)Metis mēˈtĭs [key], in astronomy, one of the 39 known moons, or natural satellites, of Jupiter. ...

Leda, in astronomy

(Encyclopedia)Leda lēˈdə [key], in astronomy, one of the 39 known moons, or natural satellites, of Jupiter. ...

Triton , in astronomy

(Encyclopedia)Triton trītˈən [key], in astronomy, innermost and largest of the eight known moons, or natural satellites, of Neptune. ...

Proteus, in astronomy

(Encyclopedia)Proteus prōˈtēəs, –tyo͞os [key], in astronomy, one of the natural satellites, or moons, of Neptune. ...

Pasiphaë, in astronomy

(Encyclopedia)Pasiphaë pəsĭfˈəēˌ [key], in astronomy, one of the 39 known moons, or natural satellites, of Jupiter. ...

Callisto, in astronomy

(Encyclopedia)Callisto kəlĭsˈtō [key], in astronomy, one of the 39 known moons, or natural satellites, of Jupiter. ...

Ganymede, in astronomy

(Encyclopedia)Ganymede gănˈēmēdˌ [key], in astronomy, one of the moons, or natural satellites, of Jupiter; the largest natural satellite in the solar system, it is larger than the planet Mercury. ...

Io, in astronomy

(Encyclopedia)Io īˈō [key], in astronomy, one of the 39 known moons, or natural satellites, of Jupiter. Io is subject to Jupiter's enormous tidal forces and is, as a result, the most volcanically active body in ...

Tropic of Cancer

(Encyclopedia)Tropic of Cancer, parallel of latitude at 23°30′ north of the equator; it is the northern boundary of the tropics. This parallel marks the farthest point north at which the sun can be seen directly...

Juno, in astronomy

(Encyclopedia)Juno jo͞oˈnō [key], in astronomy, 3d asteroid to be discovered. It was found in 1804 by C. Harding. It has a diameter of c.120 mi (190 km). Its average distance from the sun is 2.67 astronomical un...