The orbit is not a perfect circle but is an ellipse (oval-shape), It therefore has a near-point (perihelion) to the sun and a farthest-away point (aphelion) from the Sun on its 11.86-year journey around the Sun. And it is not a constant distance away from it.
Perihelion: 740,742,598 km (4.951 558 43 AU) (462,964,124 miles)
Aphelion: 816,081,455 km (5.455 167 59 AU) (510,050,909 miles)
Semi-major axis (average distance): 778,412,027 km (5.203 363 01 AU) (486,507,517 miles)
2007-01-07 02:10:10
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answer #1
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answered by Anonymous
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Jupiter is 5.2 astronomical units from the sun, or about 488 million miles, on the average. It revolves about the sun in about 12 years, so on the average it stays "in a zodiacal sign" for about a year, and moves in the sky about 30 degrees a year. Each year, therefore, it rises about 2 hours later than the year before, on a given day (on average--it depends on the season--in the summer it isn't quite 2 hours because the ecliptic is more parallel with the horizon and the 30 degrees doesn't get the planet all the way to the horizon).
2007-01-07 09:38:46
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answer #2
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answered by David A 5
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