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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]
Sep 27, 2024 · Equinox, either of the two moments in the year when the Sun is exactly above the Equator and day and night are of equal length; also, either of the two points in the sky where the ecliptic (the Sun’s annual pathway) and the celestial equator intersect.
- The Editors of Encyclopaedia Britannica
Sep 4, 2024 · An equinox occurs when the Earth’s equator aligns with the Sun, making the Sun appear directly overhead at the equator. On the equinox, the Sun rises due east at the equator, and sets due west. This alignment results in nearly equal daylight and darkness across the globe.
Sep 23, 2015 · The name equinox means "equal night" in Latin. It's theoretically the day of the year when all points on the earth's surface experience the same lengths of daylight and darkness - 12...
Mar 19, 2024 · This phenomenon is called an equinox, which comes from the Latin words "aequus" (equal) and "nox" (night). What causes an equinox? The Earth orbits the sun, at a tilt of about 23.5...
Equilux: when day and night are (actually) equal. The Solstices. The farthest points from the equator where the Sun can appear directly overhead are referred to as the tropics. The tropics are lines of latitude that circle the Earth above and below the equator, at about 23.4 degrees north and south. This angle is set by Earth’s axial tilt.
Sep 18, 2013 · The "equinox" happens twice every year around March 21 and September 21, but what does that really mean? Here are the real facts about the equinox.
