It's JUPITER ,because it is made up of gaseous and liquid matter .
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Jupiter rotates every 9.9 hours. That speed is the average amount of time it takes for the entire planet; because of its gaseous composition, Jupiter's surface at the poles takes 5 minutes longer to rotate than the surface at the equator. The gasses cause different rotation speeds depending on which area of the planet you are tracking. Astronomers measure the speed from 10 degrees north and south of the equator.
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Rotating at a speed of 28,273 MPH.
http://www.ehow.com/info_8670884_planet-…
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Jupiter is made entirely of hydrogen and helium gasses, making it extremely difficult to measure rotation.
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Because of the high rotation speed, Jupiter's equator bulges out and causes the planet to appear as a squashed ball. The polar radius of Jupiter equals 41,508 miles while the equatorial radius is 44,428 miles, for a 2,920 miles variance. The circumference of Jupiter's equator is 11 times larger than Earth's.
http://www.ehow.com/info_8670884_planet-…
http://www.chacha.com/question/which-pla…
.
Rotating at a speed of 28,273 MPH.
http://www.ehow.com/info_8670884_planet-…
.
Jupiter is made entirely of hydrogen and helium gasses, making it extremely difficult to measure rotation.
.
Because of the high rotation speed, Jupiter's equator bulges out and causes the planet to appear as a squashed ball. The polar radius of Jupiter equals 41,508 miles while the equatorial radius is 44,428 miles, for a 2,920 miles variance. The circumference of Jupiter's equator is 11 times larger than Earth's.
http://www.ehow.com/info_8670884_planet-…