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Sidereal and Solar Days

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How and why does a day measured with respect to the Sun differ from a day measured with respect to the stars?

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Solution Summary

This solution explains why and how there is a difference between a day measured with respect to the sun and that measured with respect to the stars, which is actually the difference between solar and sidereal days.

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First, I'll need to mention that a day measured with respect to the sun is called a solar day, while that measured with respect to the stars is called a sidereal day.

Now the stars are really far away from us that the motion of the Earth about the sun (that is the revolution, not the rotation about its axis) is very negligible as seen from the stars, ...

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