How long does it takes the earth to rotate on its axis?

Answer 1

The period is 24 hours, governed by the Sun rising and setting. But this is a trick question because during that 24 hours, the Earth has gone round its orbit a little so it has to rotate for four extra minutes each day to get to noon with the Sun at the same place in the sky.

The period relative to the stars is 23 hours 56 minutes, so our 24-hour day makes all the stars rise and set four minutes earlier each day.

Answer 2

Each planet spins at a different speed, giving each a "day" of varying length (see the exceptions below for Venus and Uranus).

Mercury : Mercury completes one rotation every 58.65 Earth days.

Venus : Venus rotates slowly, in a clockwise (retrograde) direction, once every 243 Earth Days. Since this is longer than its year, this is not the length of its solar day.

Earth : Earth has a "siderial" (absolute rotation period) of 23 hours 56 minutes.

Mars : Mars' day is very close to Earth's at 24.6 Earth hours (it spins slower but is much smaller).

Jupiter : Jupiter (at least its outer atmosphere) has the fastest rotation, taking just under 10 Earth hours (9.925 hours).

Saturn : The equatorial rotation period of Saturn is 10 hours and 14 minutes.

Uranus : Tipped on its side, Uranus still spins on its axis once every 17.25 Earth hours. Whether it is retrograde or not depends on the selection of a pole, but Uranus appears to "roll forward" in the direction of its orbit, as seen from above the ecliptic plane. A given location on the planet would experience a great variation in the solar day during the planet's year.

Neptune : The planet Neptune tales about 16 hours, 6 minutes, 36 seconds for one complete rotation, as evidenced by its visible blue outer atmosphere.

Answer 3

It varies depending on the planet. The slowest rotation of any planet is that of Venus, which takes 243 Earth days to complete a single rotation. The fastest rotation goes to Jupiter, which rotates once every 9.9 hours.

Answer 4

24 hours for one complete axial rotation (Earth-Day)

Answer 5

It depends on the planet. Some take 10 hours such as Jupiter, while others may take 24 hours, such as Earth.

Answer 6

For any planet? One complete rotation is just that, a rotation, and the completion of one full revolution around the sun is an orbit.

Either way It varries from planet to planet.

Answer 7

The time it takes a planet to rotate on its axis is a planetary day.

Answer 8

24 hours.