March equinox is known as the vernal equinox (spring equinox) in the Northern Hemisphere and as the autumnal equinox (autumn equinox or fall equinox)...

equator. On the day of the equinox, the Sun appears to rise "due east" and set "due west". This occurs twice each year, around 20 March and 23 September. More...

Spring equinox or vernal equinox or variations may refer to: March equinox, the spring equinox in the Northern Hemisphere September equinox, the spring...

Autumnal equinox or variations, may refer to: September equinox, the autumnal equinox in the Northern Hemisphere March equinox, the autumnal equinox in the...

The September equinox (or southward equinox) is the moment when the Sun appears to cross the celestial equator, heading southward. Because of differences...

meteorological beginning of spring occurs on the first day of March. The March equinox on the 20 or 21 marks the astronomical beginning of spring in the...

astronomical seasons. For example, it is the time from vernal equinox to the next vernal equinox, or from summer solstice to the next summer solstice. It is...

of Earth's equator passes through the center of the Sun March equinox September equinox Equinox (celestial coordinates), either of two places on the celestial...

center of either the Sun or Earth, its primary direction is towards the March equinox, and it has a right-hand convention. It may be implemented in spherical...

the March equinox, typically on March 21. Because the Earth takes approximately 365.24 days to go around the Sun, the precise time of the equinox is not...