What do you mean by sidereal day?
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- A sidereal day is the time it takes for the Earth to rotate about its axis so that the distant stars appear in the same position in the sky. ...
- The sidereal day is the time it takes for the Earth to complete one rotation about its axis with respect to the 'fixed' stars.
- On Earth, a sidereal day lasts for 23 hours 56 minutes 4.091 seconds, which is slightly shorter than the solar day measured from noon to noon.
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