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Why is the solar day not equal in time to the period of exactly one rotation of the earth about its axis?
Wiki User
∙ 12y ago
Its to do with the planets progression around the sun in that time. A planets rotation is often expressed in terms of how long it takes to revolve once on its axis relative to the fixed background stars (sidreal rotation period). But during this time, the earth (or other planet) has moved around the sun a little. This progression means that the angles have changed, the earth has to rotate just that little bit more for the sun to appear in the same place as it did the day before. So for Earth and most other planets, a solar or apparent day is slightly longer than its sidereal rotation period.
Wiki User
∙ 12y ago
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What is the time of one rotation on its axis for Venus?
The rotation period of Venus is equal to 243.02 Earth days. In other words, one "day" (a "sidereal day" to be precise) on Venus is equal to about 243 Earth days. A sidereal day is the rotation period relative to the distant stars. It's often confused with the "solar day" which is based on the position of the Sun. The solar day for Venus is only about 117 Earth days. For Earth there is hardly any difference in the lengths of the two days . So people usually just say an "Earth day" for either.
How long does it take for venus to complete a full rotation?
venus completes an orbit every 224.65 days.
How many earth days are equal to 31 days on Pluto?
The sidereal rotation period of Pluto is about 6.39 Earth days.Therefore, 31 Plutonian days is equal to (31 * 6.39) = 198.09 Earth days.Also note that 31 Earth days would be equal to (31 / 6.39) = 4.85 Plutonian days.
How many moons does Earth have and what is the frequency of rotation?
Earth has one moon. Its periods of axial rotation and orbital revolution are equal, so that the same side always faces earth. The period is 27.32 days. The corresponding frequency is 0.0366 per day, or 4.236 x 10-7 Hz. (rounded)
What is the rotation time for Pluto?
I don't know why do you think i came to this lame website that's it im stoping coming of this everyone knows exept me BYE!
How long does one rotation on it axis take for venus?
The rotation period of Venus is equal to about 243.02 Earth days.
What is the period of rotation to equal 1 day on the planet Venus?
about 243 earth days
What State is at which the moon orbital and rotational periods are equal?
A state of `synchronous rotation`. Its where the rotational period of the moon is equal to orbital rotation period about Earth, one face of the moon will always appear to face earth. In our moons case this is due to tidal locking.
How long is plutos potation?
A single day, or one rotation period for Pluto, is equal to 6.39 days on Earth. The orbital period of Pluto is equal to 248 years on Earth. Pluto has an axial tilt of 120 degrees.
Why do you always sees the same side of the moon?
Because the period of the Moon's revolution around the Earth and the period of the Moon's rotation on its axis are precisely equal.
What is the time of one rotation on its axis for Venus?
The rotation period of Venus is equal to 243.02 Earth days. In other words, one "day" (a "sidereal day" to be precise) on Venus is equal to about 243 Earth days. A sidereal day is the rotation period relative to the distant stars. It's often confused with the "solar day" which is based on the position of the Sun. The solar day for Venus is only about 117 Earth days. For Earth there is hardly any difference in the lengths of the two days . So people usually just say an "Earth day" for either.
Plutos period of rotation?
Pluto has a rotational period equal to 153.3 hours.
Explain the Moons period of rotation versus period of revolution.?
They are precisely equal.
How long does it take for venus to complete a full rotation?
venus completes an orbit every 224.65 days.
How many earth days are equal to 31 days on Pluto?
The sidereal rotation period of Pluto is about 6.39 Earth days.Therefore, 31 Plutonian days is equal to (31 * 6.39) = 198.09 Earth days.Also note that 31 Earth days would be equal to (31 / 6.39) = 4.85 Plutonian days.
Why does only one side of the moon always faces toward the Earth while the other side always faces away from the Earth?
Because the time periods of the moon's rotation and revolution are exactly equal.
How many days on Jupiter are equal to a day on earth?
A "day" on Jupiter (its period of rotation) is about 9.9 Earth hours.So there are approximately 2.4 Jupiter days in an Earth day.
