Last Updated：2025/11/20
(astronomy) The moment when the sun appears to cross the celestial equator while tilting towards from the observer, taking place in March in the northern hemisphere and September in the southern hemisphere.
音声機能が動作しない場合はこちらをご確認ください
See correct answer
vernal equinox
Edit Histories（0）
Source Word
vernal equinox
（ plural ）
