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Orreries are models of the sun, planets and moons of the solar system, used for studying Astronomy. Sybill Trelawney used one of all nine planets (including Pluto) while teaching Astrology during Divination in 1995.^[1]

Related items

• During Albus Dumbledore's time as Headmaster of Hogwarts, the Headmaster's office contained a number of orrery-like objects, though their specific purpose is unknown.
• Globes of the moon^[2] and perfect, moving models of the galaxy in a large glass ball^[3] could be purchased in Diagon Alley.

Appearances

• Harry Potter and the Goblet of Fire

Notes and references

1. ↑ Harry Potter and the Goblet of Fire, ch.29
2. ↑ Harry Potter and the Philosopher's Stone, ch.5; Pottermore
3. ↑ Harry Potter and the Prisoner of Azkaban, ch.4

Astronomy
Professors: Aurora Sinistra
Astronomy at Hogwarts: Astronomy department · Astronomy Tower · Astronomy Room · Astronomy stairwell · Astronomy Corridor · Astronomy reading room · Astronomy classroom
Astronomers: Aurora Sinistra · Copernicus · George von Rheticus · Perpetua Fancourt
Objects: Globe of the Moon · Lunascope · Moon chart · Orrery · Star chart · Telescope
Planets: Jupiter · Mars · Mercury · Neptune · Pluto · Saturn · Uranus · Venus
Satellites: Callisto · Europa · Ganymede · Io · Moon
Constellations: Bartholomeus · Orion