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Rotation period

From Academic Kids

In astronomy, a rotation period is the time an astronomical object takes to complete one revolution around its rotation axis. For solid objects, such as rocky planets and asteroids, the rotation period is a single value. For gaseous/fluid bodies, such as stars and gas giant planets, the period of rotation varies from the equator to the poles, called differential rotation. Typically, the stated rotation period for a gas giant (ie, Jupiter) is the internal rotation period, as determined from the rotation of the magnetic field.

Rotation period of selected objects

Sun 24.66 days (equator), about 35 days near the poles
Mercury 58.6462 d (58 d 15.5088 h)
Venus −243.0185 d
Earth 0.997 268 d (23.9344 h) (86 164 s)
Moon 27.321 661 d (synchronous)
Mars 1.025 957 d (24.622 962 h)
Jupiter 0.413 538 021 d (9 h 55 min 29.685 s)
Saturn 0.444 009 259 2 d (10 h 39 min 22.400 00 s)
Uranus −0.718 333 333 d (17 h 14 min 24.000 00 s)
Neptune 0.671 250 00 d (16 h 6 min 36.000 00 s)
Pluto −6.387 d (6 d 9 h 17.6 min)

See also

Template:Web reference

Template:Astro-stub

fr:Priode de rotation it:Periodo di rotazione zh:自轉週期

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