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How long is a sidereal day?

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Because the earth moves in its orbit about the sun, the sidereal day is about 4 min shorter than the solar day (see solar time ).

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Get more facts and information about sidereal time . Or, view the full encyclopedia entry from The Columbia Encyclopedia, Sixth Edition.

Similar questions: How does a sidereal day differ from a solar day? Do sidereal days have the same length as solar days? What is the length of a sidereal day? [ Hide these questions ]

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