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The days on Earth are determined by our rotational period. On other planets the rotatinal speed is different, and other factors can make the "solar day" (sunrise to sunrise) very different.
Rotational periods (for the core if a gas giant):
Mercury: 58.646225 Earth days
Venus: 243.0187 Earth days
Earth: 0.99726968 Earth days
Mars: 1.02595675 Earth days
Jupiter: 0.41354 Earth days
Saturn: 0.44401 Earth days
Uranus: 0.71833 Earth days
Neptune: 0.67125 Earth days
These are the rotation periods or "sidereal days", given in Earth "solar days" (of 24 hours)
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Calculating the solar day length
The length of a planet's "day" is normally determined by its rotational speed, which varies and is fastest on the larger planets. For two inner planets, the rotation is so slow that the "solar day" (sunrise to sunrise) is determined primary by their revolution around the Sun. For Uranus, its tilt means that the day or night is determined by its 84 Earth year orbit around the Sun.
Mercury: solar day is 176 Earth days
rotates once every 58.6 Earth days - (day is twice the length of its year)
Venus : solar day is 116.75 Earth days
rotates once every 243 Earth days, east to west - (its year is 224 Earth days).
Earth: solar day is 24 hours
rotates once every 23.93 hours (Earth rotates 366.25 times a year)
Mars : solar day is 24.6 Earth hours
rotates once every 24.66 Earth hours (the much longer year means the number of rotations roughly equals the number of days)
Jupiter : solar day is 9.925 Earth hours
rotates once 9.925 earth hours -(the atmosphere in the equatorial regions takes only 9.84 hours to rotate - it is a gas planet and the clouds are not attached to the core below)
Saturn :solar day is 10.65 Earth hours
rotates once every 10.65 Earth hours - clouds in equatorial regions take only 10.23 hours to rotate)
Uranus : solar day is 42 Earth years
rotates once every 17.24 Earth hours - (the planet is tipped on its side - each pole spends 42 Earth years in sunlight or darkness)
Neptune : solar day is 12 to 18 Earth hours
rotates once every 16.1 hours (the gases of Neptune's atmosphere rotate fastest at the poles: 1.5 times faster than at the equator)
What else can I help you with?
How long are the days on the moon?
Days on the moon are 29.531 earth days long.
who long is 116.67 hours in days?
how long is 100hrs in days
How long is 45 days?
It is 6 weeks and 3 days
How long is 350 working days?
How long is 350 working days
What is long year or month?
A long year is 366 days, a long month is 31 days.
How long are normal periods?
They can be as short as 3 days and as long as 7 days.
How long is 10 days in weeks?
1 week 3 days. Note: a week is 7 days long.
How long is 856 days?
865 days ;)
Does the moon or the earth have days that are 656 hours long?
Days on the Earth are 24 hours long. Days on the Moon are about 29.5 days, or 709 hours.
What is the duration of Long Days of Hate?
The duration of Long Days of Hate is 1.5 hours.
What is the duration of The Long Days of Summer?
The duration of The Long Days of Summer is 1.35 hours.
Is the tour de france three days long?
No. TdF is 23 days long, with 21 days of racing and two rest days evenly spaced.
