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Multi-word Results
| sidereal day |
a unit of time equal to the time required for one rotation of the earth; twenty-three hours, fifty-six minutes, and 4.1 seconds. |
| sidereal month |
the time required for one complete revolution of the moon around the earth with respect to a fixed star, or about 27.3 days in mean solar time. |
| sidereal time |
time based upon the rotation and revolution of the earth with reference to the background of stars. |
| sidereal year |
a unit of time equal to the time required for one revolution of the earth around the sun; 365 days, six hours, nine minutes, and 9.54 seconds. |
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