During which event do the hours of daylight on Earth equal the hours of night?d5fb017b8ac8a127f6156a29cc09b398.webm109 KB aaphelion bequinox cperhelion dsolstice
Question
During which event do the hours of daylight on Earth equal the hours of night?d5fb017b8ac8a127f6156a29cc09b398.webm109 KB aaphelion bequinox cperhelion dsolstice
Solution
The event during which the hours of daylight on Earth equal the hours of night is the equinox. This occurs twice a year, around March 21 (the vernal equinox) and September 22 or 23 (the autumnal equinox), when the tilt of the Earth's axis is inclined neither away from nor towards the Sun. During equinox, the Sun crosses the celestial equator and the length of day and night is approximately equal.
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