planetarium

An apparatus or model representing the solar system.

An optical device for projecting images of celestial bodies and other astronomical phenomena onto the inner surface of a hemispherical dome.

A building or room containing a planetarium, with seats for an audience.

An astronomical machine which, by the movement of its parts, represents the motions and orbits of the planets. See orrery.

An orrery. See orrery.

A display museum in which images of stars and other astronomical phenomena are projected onto a domed ceiling.

An orrery.

an apparatus or model for representing the solar systems

an optical device for projecting images of celestial bodies and other astronomical phenomena onto the inner surface of a hemispherical dome