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Rotation period facts for kids

Kids Encyclopedia Facts
Eros rotation Dec. 3-4 2000
Animated rotation of asteroid 433 Eros

In astronomy, a rotation period is the time an astronomical object takes to complete one revolution around its rotation axis relative to the background stars. For the Earth this is a sidereal day. It is different from a solar day, which is measured by the passage of the Sun across the local meridian.

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Rotation period Facts for Kids. Kiddle Encyclopedia.