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Title: An orrery is a mechanical model of the solar system
Caption: An orrery is a mechanical model of the solar system that illustrates or predicts the relative positions and motions of the planets and moons, usually according to the heliocentric model.
Credit: Album / Universal Images Group / Universal History Archive
Image size: 5362 × 3911 px | 60.0 MB
Print size: 45.4 × 33.1 cm | 2111.0 × 1539.8 in (300 dpi)