... a "bright, wandering" star" and they most likely associated it with the mythology of the time. Ancient Romans named the planet after the Roman god, Jupiter (Zeus in Greek mythology) and the astronomical symbol (see Figure 1) is a representation of the lightning bolt carried by Zeus (Crystal). In 1610, Galileo Galilei made the first detailed observations of Jupiter (Harvey). He discovered Jupiter's four large moons (see Figure ... /s Mean Radius: 6.99 x 104  km Apparent Magnitude: -1.6 to -2.94 Escape Velocity: 6.020 x 104  m/s Equatorial Surface Gravity: 24.79 m/s2 Semi-major axis: 7.7...

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• Grade Level: High School

... and suggested instead that he use a name from Greco-Roman mythology like all other planets. So Uranus was given its name which is the father of Saturn. Uranus is one of the Jovian planets and like the others it has a short rotation period. Uranus's day is 17.2 hours. Its revolution around ... the sun however is slightly more than 84 years. It is the seventh planet from the sun at a distance of 1.78 billion miles ... . Uranus is about 4 times the diameter of earth at 46,700km. Its mass is 15 times that of earth ... A. Kerr Laboratory researchers found that by simulating Neptune's "hellis...

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• Grade Level: High School