General Knowledge - World Geography - Discussion
Discussion Forum : World Geography - Section 4 (Q.No. 9)
9.
The time interval from when the given star passes directly overhead to when it next passed directly overhead, is defined as
Discussion:
1 comments Page 1 of 1.
Ravi r s said:
1 decade ago
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. A solar day is the time it takes for the Earth to rotate about its axis so that the Sun appears in the same position in the sky. The sidereal day is ~4 minutes shorter than the solar day.
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