Autumn Equinox 2024 Melbourne Time. This year, it falls on sunday, sept. Autumn equinox 2024 (beginning of astronomical autumn) on the day of the autumn (september) equinox, the sun, moving along the ecliptic, crosses the celestial equator,.
Year march equinox june solstice september equinox december solstice tropical year length; Autumn equinox 2024 (beginning of astronomical autumn) on the day of the autumn (september) equinox, the sun, moving along the ecliptic, crosses the celestial equator,.