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Astronomical Year (Noun)

Meaning

The time for the earth to make one revolution around the sun, measured between two vernal equinoxes.

Classification

Nouns denoting time and temporal relations.

Examples

  • An astronomical year is exactly 365.242199 days, which is why we add a leap day every four years to keep our calendar in sync with the seasons.
  • The term astronomical year is often used interchangeably with the phrase tropical year, which is the time it takes the Earth to orbit the sun relative to the stars.
  • As the length of an astronomical year is not a whole number, it can be difficult to divide it into equal periods for calendar purposes.
  • In fact, an astronomical year is shorter than a sidereal year, which is the time it takes the Earth to orbit the sun relative to the fixed stars.
  • An astronomical year can also be calculated by measuring the time between two consecutive perihelions, which occurs when the Earth is closest to the sun in its orbit.

Synonyms

  • Solar Year
  • Tropical Year
  • Equinoctial Year

Hypernyms

  • Year
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