LRI4632465 Planetarium (planetarium) astronomical instrument representing the solar system and the movement of its main planets known in the 18th century. Mercury, Venus, Earth and Moon can move through the action of a crank. Mars, Jupiter and Saturn are fixed. Developed by George Adams the Old. 1750 Cambridge, Whipple Museum, United Kingdom by Adams, George the Elder (c.1709-1773); Whipple Museum, Cambridge, UK; (add.info.: Planetarium (planetarium) astronomical instrument representing the solar system and the movement of its main planets known in the 18th century. Mercury, Venus, Earth and Moon can move through the action of a crank. Mars, Jupiter and Saturn are fixed. Developed by George Adams the Old. 1750 Cambridge, Whipple Museum, United Kingdom); Luisa Ricciarini; English, out of copyright.