Equinox
01
dagjämning, dagjämningspunkt
(astronomy) either of the two celestial points at which the celestial equator intersects the ecliptic
02
dagjämning, dagjämningspunkt
either of the two moments in a year when the Sun, in its apparent motion along the ecliptic, crosses the celestial equator, resulting in approximately equal periods of daylight and darkness worldwide
Exempel
The spring equinox marks the beginning of spring in the Northern Hemisphere.
Vårdagjämningen markerar början på våren på norra halvklotet.
During the autumn equinox, the length of day and night are nearly equal.
Under höst-dagjämningen är dagens och nattens längd nästan lika.
