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Equinox (disambiguation) : ウィキペディア英語版 | Equinox (disambiguation)
An equinox in astronomy is the event when the Sun can be observed to be directly above the equator. Equinox may also refer to: ==Astronomy==
* Equinox (celestial coordinates), a moment of time chosen for a moving celestial coordinate system such as Right Ascension/Declination, often confused with Epoch
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