equinox Comparison Table

Astronomy View all facts Glossary Help

physical phenomena > event > celestial event > periodic celestial event > equinox

Next periodic celestial event: Forbush decrease Up: periodic celestial event Previous periodic celestial event: active Sun

equinox comparison table

Subject has date has synonym has definition

autumnal equinox world point See equinox

vernal equinox on or around 21 March spring equinox The point of intersection between the ecliptic and the celestial equator, where the Sun crosses from south to north. It is sometimes called the First Point of Aries because several thousand years ago it was in Aries. Because of precession it has now slid west into Pisces and in 200-300 years it will edge into Aquarius. By definition, the vernal equinox is at α = 0°, δ = 0°.

Subject	has date	has synonym	has definition
autumnal equinox		world point	See equinox
vernal equinox	on or around 21 March	spring equinox	The point of intersection between the ecliptic and the celestial equator, where the Sun crosses from south to north. It is sometimes called the First Point of Aries because several thousand years ago it was in Aries. Because of precession it has now slid west into Pisces and in 200-300 years it will edge into Aquarius. By definition, the vernal equinox is at α = 0°, δ = 0°.

Next periodic celestial event: Forbush decrease Up: periodic celestial event Previous periodic celestial event: active Sun