Sidereal day Meaning, Definition & Usage
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noun the time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day
day.
WordNet
Definitions
- the interval between two successive transits of the first point of Aries over the same meridian. The Sidereal day is 23 h. 56 m. 4.09 s. of mean solar time.
