1999-2000
Lecture Notes on Astrometry
Sidereal Rotation
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(Almost) Uniform & Diurnal Rotation
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W
0
= 7.2921150(1) x 10
-5
radian/s
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Rotation Period = 1 Sidereal Day ~
365.2422.../366.2422... Day
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Greenwich (Apparent) Sidereal Time (GAST)