How is an astronomical unit defined?

Answer 1

The Astronomical Unit is based upon the average distance of the Earth from the Sun. It is now an international standard unit.

The average of Earth's perihelion and aphelion distances from the Sun was once used to calculate the Astronomical Unit, or AU.

A more precise definition is required because of anomalies in the Earth's orbit.

The Astronomical Unit, which is precisely 149,597,870,700 meters, is now defined as an international standard unit.

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Answer 2

An astronomical unit (AU) is defined as the average distance between the Earth and the Sun, approximately 149.6 million kilometers or 93 million miles.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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