Autumnal equinox

noun

Definitions

Noun
  1. 1
    The moment when the sun appears to cross the celestial equator while tilting away from the observer, taking place in September in the northern hemisphere and March in the southern hemisphere.
  2. 2
    (astronomy) the equinoctial point that lies in the constellation of Virgo wordnet
  3. 3
    September 22 wordnet

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