The moon moves around the earth in circular orbit and earth moves around the sun in an elliptical orbit. The Centre of mass of earth-moon system moves around the sun in
The Moon takes 27 days to complete a revolution around the earth but it takes 29 days to come back to a full moon. Why??
A phenomenon called "Supermoon" occurs during full moon or new moon when the moon comes closest to the earth. This shows that the moon's orbit is elliptical in shape.
Statement 1: Moon is a natural satellite of Earth.
Statement 2: Man-made satellites launched from Earth to orbit around it, are known as artificial satellites. But, moon is a naturally occuring celestial body, which revolves around Earth.
The orbital radius of moon around the earth is 3.8×108 meter and its time period is 27.3 days. The centripetal acceleration of moon will be