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Because different planets have different diameters and spin at different rates.

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12y ago

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Related Questions

Why does the length of the day and night vary from planet to planet?

Because of the difference in speed of rotation of each planet.


Why would another planet have a shorter day than earth?

It's to do with the length of time a planet takes to spin, a planet that spins on its axis faster than the earth will have a shorter apparent day.


What planet length in day is close to the length of earths day?

Mars.


What planet's length of its day is close to the length of Earth's day?

Mars


Why does the length of a day and year vary from planet to planet?

Some planets rotate faster or than others. Also the planets take different times to orbit the Sun.


Does each planet have the same length of day?

No


A day on your planet is?

A day on Earth is defined as the time it takes for the planet to complete one full rotation on its axis, approximately 24 hours. The length of a day can vary slightly over time due to factors such as orbital mechanics and tidal forces.


What is it called when a planet complete spin on its axis?

A planet completing one full rotation on its axis is called a "day." This is what determines the length of a day on that planet.


What is the relationship between the length of a planet's day and the rate of planet's rotation?

The length of a planet's day is directly related to its rate of rotation on its axis. A faster rate of rotation results in a shorter day, while a slower rate of rotation leads to a longer day. This relationship is determined by the planet's mass and distribution of mass.


What would you define the length of a planets day?

by the rotation of the planet


What movement of the planet makes one day as a unit of time?

It is the rotation of the planet one complete revolution that determines the length of a day.


Is this true or false the length of a planet's year is determined by how fast it spins?

False, the speed it spins on it's axis determinds the length of day. The speed it rotates the sun determinds the length of it's year.