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Celestial Navigation I Capt. Bernabe Lim INSTRUCTOR
Perihelion and Aphelion
PERIHELION ,[object Object]
distance about 1.5 M miles less than the mean distance
occurs on early January,[object Object]
about 1.5 M miles greater than the mean distance
occurs on early July,[object Object]
MOTION OF BODIES OF THE SOLAR SYSTEM Two principal motions ,[object Object]
RevolutionVideo
ROTATION
ROTATION Rotation of Earth around axis Rotates to East Turns counter-clockwise Daytime  and night time 24 hours or 1 day
REVOLUTION

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Perihelion and aphelion