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The Moon is Earth’s natural satellite:
- it is in synchronous rotation with Earth
- no atmosphere
- average orbital distance is 384,402 km
- almost exactly the same angular size as the sun when observed from Earth (approx. 400× smaller diameter than the sun, but 400× nearer)
The Moon revolves around the Earth in
Watch a time lapse of the ‘super blue blood moon’ eclipse of 31 Jan 2018.