Orbit of the Moon is a mini Earth & Moon orrery in a vintage-style box with gold details. Rotating the handle on the orrery causes the Earth to rotate and the Moon to orbit the Earth. I've tried to make the orrery as astronomically accurate as possible in a few ways:

Orbital period

The Moon orbits the Earth every 28 days (the Moon travels around the Earth once for every 28 rotations of the Earth). This closely represents the 27.323 days it takes for the Moon to actually orbit the Earth.

Orbit direction

The Moon orbits the Earth with Prograde motion, moving in the same direction as the Earth rotates.

Relative size

The Moon's relative size compared to the Earth closely represents the real scale of approximately 1:4.

The Earth

I've tried to represent all the continents, which was tricky at this scale!

The build has exactly 250 pieces, and would make a great display model as well as a fun educational toy. I hope you like my entry and would like to see it made into a real set! Thanks for looking :-)

Orbit of the Moon

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