This is Orrery combines a geared tellurim, representing the annual and diurnal motions of the Earth, with a manual planetarium, showing the motion of the planets around the Sun. All of the planets and their satellites are represented with ivory balls on brass arms, the Sun is a brass sphere and the Earth a model with printed gores. An inscription records the maker as "J. ADDISON, 116, Regent Street, St. James's, GLOBE MAKER to His Most Gracious Majesty, Geo. IIII. The dating relates to Addison's known addresses.

The model consists of a circular wooden baseboard on three turned feet. Printed paper on the base gives calendar and zodiac scales and "A View of the Principal Stars from the Southern Limit of the Zodiac to the Northern Ecliptic Pole". Jupiter is shown with four satellites, Saturn with ring and seven satellites, and Uranus with six. This latter model reflects the spurious discovery of four new moons orbiting Uranus by William Herschel in the 1790s, who had already discovered Uranus itself in 1781 and its first two moons in 1787. This system of six satellites was accepted for some decades, although these four moons were never observed by other astronomers. It was only in 1851 that WIlliam Lassell observed two further moons but these did not correspond with those which Herschel had reported, and no further moons were discovered until the 20th century.