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24 Solar Terms


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开发 Qian Kun zhu
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A solar term is any of 24 points in traditional East Asian lunisolar calendars that matches a particular astronomical event or signifies some natural phenomenon. The points are spaced 15° apart along the ecliptic and are used by lunisolar calendars to stay synchronized with the seasons, which is crucial for agrarian societies. The solar terms are also used to calculate intercalary months in East Asian calendars; which month is repeated depends on the position of the sun at the time.

This app simulate how solar term changes by earth sun position change, in a simple way. This app only simulate the northern hemispheres solar term, which the southern hemispheres solar term is the reverse way.

The Solar Term Date can vary within ±1 day range.

Bete version for testing.