Equinox - Wikipedia
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] More precisely, an equinox is traditionally defined as the time when the plane of Earth's equator passes through the geometric center of the Sun's disk.
Equinox Definition & Meaning - Merriam-Webster
1. : either of the two points on the celestial sphere where the celestial equator intersects the ecliptic. 2. : either of the two times each year (as about March 21 and September 23) when the sun crosses the equator and day and night are everywhere on earth of …
What Is the Equinox? And What Is the Solstice? - timeanddate.com
What Is the Equinox? And What Is the Solstice? By Graham Jones. Equinoxes and solstices are a result of two things: Earth’s tilt and its orbit around the Sun.
EQUINOX Definition & Meaning | Dictionary.com
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 )..
EQUINOX | English meaning - Cambridge Dictionary
EQUINOX definition: 1. either of the two occasions in the year when the centre of the sun is directly above the…. Learn more.
EQUINOX | definition in the Cambridge English Dictionary
equinox. noun [ C ] us / ˈek.wə.nɑːks / uk / ˈek.wɪ.nɒks /. Add to word list. either of the two occasions in the year when the center of the sun is directly above the Equator, and day and …
Equinox – Definition, Facts, Dates - Science Notes and Projects
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.