Planetary Science

Which planets have a year shorter than the Earth's year?

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March 21, 2017 11:59AM

Mercury and Venus have shorter years than a year on Earth. This is because they are closer to the sun and the circumference of their orbits is smaller than that of Earth's. Mercury and Venus

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A year on Earth is longer than it is on two other planets, and shorter than it is on the remaining five. The farther a planet is from the sun, the longer its year is.

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No. The length of a planet's year is determined by its distance from its sun. In our solar system all of the Jovian planets orbit farther from the sun than the terrestrial ones and therefore have longer years.

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Because it has less distance to travel around the Sun.

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Planets closer to the sun than Earth orbit the sun in less than one year (Mercury and Venus), while planets further out from the sun than Earth take longer than a year (Mars, Jupiter, Saturn, Uranus and Neptune). The further out you go, the longer it takes to orbit the sun.

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Yes, it is slightly shorter than a quarter of an Earth year.

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The closer the planet is to the sun, the shorter its year (the time taken to complete one orbit).

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Venus. That's the "sidereal day" (rotation period). However, Venus has a "solar day" that's shorter than its year. Mercury is the planet with a "solar day" that's longer than its year.

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It depends on the planet. The planets orbiting closer to the sun than earth (Mercury and Venus) have shorter years, because they have smaller orbits, and travel faster. The planets further from the sun (Mars, Jupier, Saturn, Uranus, and Neptune) have longer years because they have larger orbits and travel slower.

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Mercury and Venus both have shorter annual periods than the Earth.

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Mars, with a orbital period of around 687 days, almost two Earth years (which would be 730 days).

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Well, we are closer to the sun, closer then Jupiter, so it makes our revolution shorterbecause we have a shorter distance to travel, hence Jupiter having a longer year then Earth.

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-- All of them are. -- Any number of months less than 12 is shorter than 1 year.

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A lunar year is slightly shorter than a solar year. A lunar year has about 354 days while a solar year has 365.

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shorter, it would be three years on earth!

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if you mean neptune, then yes. the year would be a lot longer because neptune is alot further from the sun than the earth. so therefore, neptune will take longer to orbit the sun than the earth.

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Shorter. Mercury has a shorter orbit than earth and 1 day in mercury = 59 days on Earth. 1 year on mercury= 88 days on earth.

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The further away from the sun the colder and longer a day and year is for that planet, on the contrary a planet closter to the sun has a shorter period of rotation affecting (shorter) hours in a day and a shorter year

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Well for Earth it is 365 days or one year. Actually for all planets it is one year it's just that some have longer or shorter years than we do.

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All the planets further away from the sun than Earth is

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The other planets have shorter or longer orbits then ours so they have shorter or longer years. The planets also have elliptical orbits too, so some spots in the orbit are sped up.

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Mercury has a shorter year than Pluto because it is closer to the sun and it completes its orbit of the sun faster than Pluto completes its orbit of the sun.

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That depends - for any planet its year is the TIME it takes to make one revolution of the Sun. Thus if you use this definition of a year, there are NO planets that take less than a year to orbit the Sun. However, if by "year" you mean an Earth Year, then all planets closer to the Sun than Earth will orbit it in less than an Earth Year and all planets further out from the Sun than Earth will orbit it in more than an Earth Year. Using the second case the two planets that take less time to orbit the Sun than does the Earth are Mercury and Venus.

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The Muslim calendar is based on the lunar cycle and the Christian calendar is based on the solar cycle. The lunar year is approximately 11 days shorter than the solar year.