the moment when the sun appears to cross the celestial equator, heading northward
the position on the celestial sphere where the sun crosses the celestial equator going from south to north This usually occurs on or about March 21
The intersection of the plane in of the ecliptic with the celestial equator This intersection occurs once a year, at the moment the Sun crosses the celestial equator moving from south to north
The place on the celestial sphere where the sun crosses the celestial equator moving northward; also, the time of year when the sun crosses this point, about March 21, and Spring begins in the Northern hemisphere
position on the celestial sphere where the ecliptic crosses the celestial equator going north, occurring on or near March 21
Point of intersection on the sky between the Sun's path (ecliptic) and the celestial equator, reached by the Sun on about March 21
Taking place in the Northern Hemispheric spring, it is the point at which the ecliptic intersects the celestial equator Days and nights are most nearly equal in duration It falls on or about March 20 and is considered the beginning of spring in the Northern Hemisphere and autumn in the Southern Hemisphere It is the astronomical opposite of the autumnal equinox
The sun is on the equator moving north, and marks the beginning of spring, (in the southern hemisphere this is the beginning of autumn)
Date on which the Sun crosses the celestial equator moving northward, occurring on or near March 21
(astronomy) the equinoctial point that lies in the constellation of Pisces March 21
An intersection of the ecliptic and celestial equators as the sun moves into positive (northern) declinations
Point where the sun crosses the Earth's equator going south to north in the northern hemisphere spring
The spring equinox The term is also used for the point occupied by the Sun at that time, one of the two intersections on the celestial spher, between the ecliptic and the celestial equator Also known as first point in Aries
One of the two periods when the declination of the sun is at the equator The vernal equinox occurs on March 22 or 23
Spring Equinox (Northern Hemisphere) The first degree of Aries, the beginning of the astrological year
The point of intersection between the ecliptic and the celestial equator, where the Sun crosses from south to north By definition, the zero point of right ascension Known as the First Point of Aries, it is now in the constellation Pisces, due to precession of the equinoxes Also, the time (near March 21) at which the Sun makes its northward crossing of the celestial equator Currently migrating toward March 19, due to precession
The point on the celestial sphere where the sun crosses the celestial equator moving northward, which corresponds to the beginning of spring in the northern hemisphere and the beginning of autumn in the southern hemisphere (in the third week of March) This point corresponds to zero (0) hours of right ascension