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A 1945 Life article reported on "an egg-balancing craze" among the population of Chongqing (the interim capital of China during World War II) on that year's Lichun. [5] That article and subsequent followings-up started a similar egg-balancing craze in the United States, but transposed to the vernal equinox beginning Western spring on March 20 or 21 when the sun is at the celestial longitude of ...
Some scientists define seasons differently from the "regular" cycle of equinoxes and solstices. Here's how meteorological seasons work.
Contour plot of the hours of daylight as a function of latitude and day of the year, showing approximately 12 hours of daylight at all latitudes during the equinoxes Earth at the September 2022 equinox. On the date of the equinox, the center of the Sun spends a roughly equal amount of time above and below the horizon at every location on the ...
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In the Northern Hemisphere after the autumnal equinox, the days begin to get shorter as the winter solstice gets closer. The seasons result from the Earth's tilt toward or away from the Sun.
The seasons with the transition points of the June solstice, September equinox, December solstice, and March equinox. The winter solstice, or hibernal solstice, occurs when either of Earth's poles reaches its maximum tilt away from the Sun. This happens twice yearly, once in each hemisphere (Northern and Southern).
Mean equinox of a standard epoch (usually the J2000.0 epoch, but may include B1950.0, B1900.0, etc.) is a fixed standard direction, allowing positions established at various dates to be compared directly. Mean equinox of date