Cool Moon Facts by Whip

Real astronomy and dated history, with sources. Documented traditions and folklore. Modern lunar astrology · symbolic, not predictive.

Chart basics · Beginner

Equinox

Also called March equinox, vernal point, 0° Aries

Either of the two moments a year when the Sun crosses the celestial equator; the March one defines 0° Aries.

At the March equinox the Sun crosses the celestial equator heading north; at the September equinox, heading south. The point on the ecliptic where the March crossing happens is the starting point of tropical longitude, so the Sun enters Aries at that moment, whatever constellation is behind it.

  • Kind: Astronomy
  • Tradition: Astronomy
  • In this site’s birth chart: used

Related: Tropical zodiac, Solstice, Precession of the equinoxes, Ingress

Written for Cool Moon Facts in its own words. An astrology source documents what astrologers believe or practise; it does not establish that astrology works.

All terms · Your birth chart

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