astronomical units

A form of astronomical unit — 149,597,870,700 metres, the approximate mean distance from the Earth to the Sun (the semi-major axis of Earth's orbit), (symbol AU), used to measure distances in the solar system.

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Meanings

noun
  1. pluralplural of astronomical unit
Cite this entry
APA

astronomical units. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/astronomical%20units

MLA

“astronomical units.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/astronomical%20units. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “astronomical units,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/astronomical%20units.

Source: astronomical units on Wiktionary, CC BY-SA 4.0.