自轉週期
(of a celestial object) time that it takes to complete one revolution around its axis of rotation relative to the background stars
AI overview
A rotation period is how long it takes for a celestial object, like a planet or star, to spin once on its axis when measured against the fixed background of distant stars. Knowing an object's rotation period helps astronomers understand its physical properties and behavior in space.
AI-generated from the Wikipedia summary — may contain errors.
Article · 中文
自轉週期（英語：Rotation period）在天文學中是指當一個物體繞著自己的，相對於背景的恆星完成一次完整轉動的時間。自轉週期和行星的太陽日有所不同之處在於，後者還包含行星公轉太陽所需要的額外旋轉量。
Abstract from DBpedia / Wikipedia · CC BY-SA