Moon
The Moon, occasionally distinguished as Luna, is an astronomical body that orbits the Earth as its only permanent natural satellite. It is the fifth-largest satellite in the Solar System, and the largest among planetary satellites relative to the size of the planet that it orbits.
Distance to earth : 384,400 km
Gravity : 1.62 m/s²
Radius : 1,737.1 km
Surface area : 3.793×107 km2; (0.074 of Earth's)
Did you know : President John F. Kennedy makes his "moon speech" at Rice University in Houston on Sept. 12, 1962.
Internal structure of moon :
Having a mean density of 3,346.4 kg/m³, the Moon is a differentiated body, being composed of a geochemically distinct crust, mantle, and planetary core. This structure is believed to have resulted from the fractional crystallization of a magma ocean shortly after its formation about 4.5 billion years ago.
The internal structure of moon & earth is similar beacuse both are parts of sun .
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