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Term: sidereal year

Description:

A sidereal year refers to the time it takes for the Earth to complete one full orbit around the Sun with respect to the fixed stars. It is approximately 365.25636 mean solar days long.

Senses:

Sense 1:

Noun: The actual time required for the Earth to complete one orbit around the Sun, measured with respect to the fixed stars.

Example: The sidereal year is slightly longer than the tropical year due to the precession of Earth's axis.

Sense 2:

Noun: The period it takes for a planet or celestial body to orbit around its star, with respect to the background stars.

Example: Jupiter's sidereal year is equivalent to approximately 11.86 Earth years.

Usage:

The term "sidereal year" is commonly used in astronomy and celestial mechanics to describe the orbital period of planets or celestial bodies.

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