sidereal day

英 [saɪˈdɪəriəl deɪ]

美 [saɪˈdɪriəl deɪ]

网络  恆星日; 恒星日; 恒星自转周期; 周期; 自转周期

英英释义

noun

• the time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day
  Synonym:day

双语例句

• A sidereal day is about 4 minutes shorter than a solar day.
  一个恒星日比一个太阳日大约短4分钟。