恒星日 / 恆星日

héng​xīng​rì

sidereal day

A unit of time based on the Earth's rotation relative to the fixed stars, equal to approximately 23 hours, 56 minutes, and 4 seconds.

恒星 (literal) → 恒星/恆星 · héng​xīng · star 日 (literal) → 日 · rì · day

Changed: simplified, traditional, gloss, definition, pinyin, variant pinyin, variants, separable parts, decomposition

created sense May 20, 2026, 07:58 PM