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- Dictionaryequinox/ˈɛkwɪnɒks/
noun
- 1. the time or date (twice each year) at which the sun crosses the celestial equator, when day and night are of approximately equal length (about 22 September and 20 March).
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Equinox - Wikipedia. A solar equinox is a moment in time when the Sun crosses the Earth's equator, which is to say, appears directly above the equator, rather than north or south of the 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. [a]
Learn the origin, history, and usage of the word equinox, which means either of the two times each year when the sun crosses the equator and day and night are of equal length. Find out how equinox relates to the seasons, solstices, and the Gregorian calendar.
An equinox is when the sun is directly above the Equator and day and night are about the same length. Learn more about the spring and autumn equinoxes, their dates, and how they are used in astronomy and language.
Oct 19, 2023 · An equinox is when the sun is directly above the Equator, creating equal day and night on Earth. Learn how equinoxes work, their effects on seasons and climate, and their cultural significance.
Equinox definition: the time when the sun crosses the plane of the earth's equator, making night and day of approximately equal length all over the earth and occurring about March 21 (vernal equinox, or spring equinox ) and September 22 (autumnal equinox )..
Mar 19, 2024 · Equilux ("equal light"), on the other hand, is the term for when day and night are exactly equal. And, because of how sunrise and sunset are defined, the equilix occurs a few days...