equinox – מילון אנגלי-אנגלי
equinox
n.
either of two times in a year when the sun crosses the celestial equator; either of the two points at which the sun's path intersects with the celestial equator
Equinox
An
equinox is an astronomical event in which the
plane of Earth's
equator passes the center of the Sun, making night and day of approximately equal length all over the planet. The equinoxes are the only times when the
solar terminator (the "edge" between night and day) is perpendicular to the equator. As a result, the northern and southern
hemispheres are equally illuminated.
equinox
Noun
1. either of two times of the year when the sun crosses the plane of the earth's equator and day and night are of equal length
(hypernym) cosmic time
(hyponym) vernal equinox, March equinox, spring equinox
2. (astronomy) either of the two celestial points at which the celestial equator intersects the ecliptic
(synonym) equinoctial point
(hypernym) celestial point
(hyponym) vernal equinox
(classification) astronomy, uranology
equinox
adj.
equinoctial, pertaining of an instance in which the Sun crosses the Earth's equator
equinox
n.
rovnodennost
