Answer: orreries

AnswerCrossword Clue
ORRERIESSolar-system models
ORRERIESPlanetariums
ORRERIESAstronomers' apparatuses
ORRERIESAstronomical models
ORRERIESPlanetary models
ORRERIESMini-planetariums
ORRERIESSolar system models
orreriesany of certain similar machines, as a planetarium
orreriesORRERY, a mechanical model of the solar system
orreriesapparatus for representing the positions, motions, and phases of the planets, satellites, etc., in the solar system