最終更新日：2024/08/04

(astronomy) A point on the celestial sphere where the sun crosses the celestial equator on September equinox.

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first point of Libra

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元となった辞書の項目

first point of Libra

name

(astronomy) A point on the celestial sphere where the sun crosses the celestial equator on September equinox.

The first point of Libra is called Alpha Librae.

意味（1）

(astronomy) A point on the celestial sphere where the sun crosses the celestial equator on September equinox.