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"Professor Trelawney bent down and lifted, from under her chair, a miniature model of the solar system, contained within a glass dome. It was a beautiful thing; each of the moons glimmered in place around the nine planets and the fiery sun, all of them hanging in thin air beneath the glass. Harry watched lazily as Professor Trelawney began to point out the fascinating angle Mars was making to Neptune."
— Harry Potter's fourth-year Divination class[src]

An Orrery was a model of the sun, planets and moons of the solar system, used for studying Astronomy.[4][2][3]

History[]

"We can make use of this Orrery to predict the next eclipse."
Professor Sinistra to her students[src]
Jacob's sibling predicting an eclipse with orrery HM728a

Jacob's sibling predicting an eclipse using an orrery in the Astronomy Tower

During sixth-year Astronomy lessons during the 1989–1990 school year and seventh-year lessons in the 1990–1991 school year at Hogwarts, Professor Aurora Sinistra would have her students observe an orrery in the Astronomy Tower, in order to make predictions about the next eclipse.[4][2][3]

Sybill Trelawney used one of all nine planets (including Pluto) while teaching Astrology during Divination in 1995. This orrery was magical, as astronomical objects inside the glass hovered in thin air.[1]

Related items[]

Dumbledore's office UE booklet 1

Dumbledore's office with orrery-like globes to the bottom left and middle right

Behind the scenes[]

Appearances[]

Notes and references[]

  1. 1.0 1.1 1.2 1.3 Harry Potter and the Goblet of Fire, Chapter 29 (The Dream)
  2. 2.0 2.1 2.2 2.3 Harry Potter: Hogwarts Mystery, Year 7, Chapter 16 (Trials and Tribulations) - Astronomy Lesson "Rogue Planets"
  3. 3.0 3.1 3.2 3.3 Harry Potter: Hogwarts Mystery, Year 7, Chapter 28 (The Last Laugh) - Astronomy Lesson "Dark Matter and Dark Energy"
  4. 4.0 4.1 4.2 Harry Potter: Hogwarts Mystery, Year 6, Chapter 25 (Written in the Stars) - Astronomy Lesson "Lunar Phases"
  5. Harry Potter and the Prisoner of Azkaban (film)
  6. Harry Potter and the Philosopher's Stone, Chapter 5 (Diagon Alley)
  7. Harry Potter and the Prisoner of Azkaban, Chapter 4 (The Leaky Cauldron)
Astronomy
Astronomy Pottermore
Professors: Satyavati Shah · Aurora Sinistra
Astronomy at Hogwarts: Astronomy classroom · Astronomy Corridor · Astronomy Club · Astronomy department · Astronomy homework meeting · Astronomy reading room · Astronomy Room · Astronomy Stairs · Astronomy Tower
Astronomers: Aurora Sinistra · Copernicus · George von Rheticus · Perpetua Fancourt · Hesper Starkey
Objects: Astrolabe · Globe of the Moon · Lunascope · Moon chart · Orrery · Sextant · Star chart · Telescope
Planets: Jupiter · Mars · Mercury · Neptune · Pluto · Rogue planets · Saturn · Uranus · Venus
Satellites: Callisto · Europa · Ganymede · Io · Moon
Constellations: Aquila · Bartholomeus · Cetus · Crater · Dark cloud constellations · Orion · Ursa Major
Other topics: Black holes · Cosmic ages · Dark energy · Dark matter · Eclipse · Lunar phases · Meteor showers · Space weather · Wormholes
Divination
Trelawney's first Divination lesson in the trio's third year
Professors: Percival Rackham · Mudiwa Onai · Sybill Trelawney · Firenze
Known Seers: Calchas · Cassandra Vablatsky · Cassandra Trelawney · Gellert Grindelwald · Inigo Imago · Johan Hoffman · Liz Tuttle's mother · Mopsus · Professor Mopsus · Susie Sooth · Tycho Dodonus · Unidentified Canadian Seer · Unidentified female Seer · Unidentified male Seer
Textbooks: The Dream Oracle · Unfogging the Future
Methods: Astrology · Bibliomancy · Capnomancy · Cartomancy · Catoptromancy · Crystal-gazing · Crystal ball · Dream interpretation · Fire-omens · Heptomology · Horoscope · Ichthyomancy · Lithomancy · Myomancy · Ornithomancy · Orrery · Ovomancy · Palmistry · Personal chart · Phyllomancy · Prophecy · Rune stone · Scrying mirror · Tarot cards · Tessomancy · Xylomancy
Divination at Hogwarts: Divination (class) · Divination Classroom · Divination staircase · Sybill Trelawney's office · Classroom 11 · Xylomancy (class)
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