equinox
An equal day and night occurs twice per year on the summer and winter equinox.
Its the orientation of the earths rotational axis that defines the equinox, the axis remains parallel throughout the orbit of the sun, and when its side on to the sun (spring and autumn), thats the equinox (equal length of day and night).
The equinoxes are the two dates each year when the day and the night are of equal length.
If the Earth's axis was vertical - every point on its surface would have the same length of day and night, no matter what time of year it was. The tilt of the axis (to about 11 degrees) means that, as the Earth rotates, and travels around the sun, the length of day shortens and lengthens throughout the year.
Twice every year when night and day are of equal length.
they recieve more solar energy than the poles do
equinox
The time of year with equal time of night and day is the equinox.
Day and night are equal at the equinoxes, which occur twice a year (around March 20th and September 22nd). During the equinoxes, the Earth's axis is not tilted towards or away from the Sun, resulting in approximately equal amounts of daylight and darkness worldwide.
A period of time when the day time hours are equal to the number of night time hours is called an equinox. This occurs twice a year, in spring and autumn, when the Earth's axis is tilted neither toward nor away from the sun.
An equal day and night occurs twice per year on the summer and winter equinox.
Daylight and darkness are equal during the vernal equinox.
Equinox is the time of year when the day and night are equal, which occurs in March and September. They are known as the Vernal and Autumnal Equinoxes.
The equinox is when, twice each year, day and night are of equal length (about 22 September and 20 March).
By definition, one year.
The length of day and night on Earth are not always equal. The amount of daylight and darkness varies depending on the time of year and the latitude of a location. This difference is more pronounced the closer you are to the poles and during the equinoxes.
An equinox is when the sun crosses the celestial equator, resulting in day and night being nearly equal lengths all over the world. There are two equinoxes each year: the vernal equinox in March and the autumnal equinox in September.