Orrery- Simulacrum of celestial bodies configured and arranged so as to represent the movement of planets, stars, moons, etc. within actual or theorized (or fantastical) solar systems.
I have a variety of orreries (orreri ?) in 1/12 scale (1/24 scale coming soon). Some are table top models and some are mounted on stands. Measurements are given for each in the descriptions. Most have movable planets. If not, I will specify.