autumnal equinox

英語（米国） (en-US) 英語（イギリス） (en-GB)

名詞

(astronomy) The moment when the sun appears to cross the celestial equator while tilting away from the observer, taking place in September in the northern hemisphere and March in the southern hemisphere.

日本語の意味

天文学において、太陽が観測者から見て天の赤道を横切る瞬間を指し、北半球では9月、南半球では3月に起こる現象。

英語の意味

(astronomy) The moment when the sun appears to cross the celestial equator while tilting away from the observer, taking place in September in the northern hemisphere and March in the southern hemisphere.

このボタンはなに？

On the autumnal equinox, astronomers note the moment when the sun appears to cross the celestial equator, marking the change of seasons in the northern hemisphere.

秋分には、太陽が天の赤道を横切るように見える瞬間として観測され、北半球では季節の変わり目を示します。

詳細

意味（1）

(astronomy) The moment when the sun appears to cross the celestial equator while tilting away from the observer, taking place in September in the northern hemisphere and March in the southern hemisphere.

autumnal equinoxes （ plural ）