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" [...] and it's Io that's got the volcanoes."
Hermione Granger correcting Ron Weasley's essay about Jupiter's moons[src]

Io is one of Jupiter's moons.[1]

This natural satellite has many volcanoes. It was studied in Astronomy class at Hogwarts School of Witchcraft and Wizardry.[2]

Appearances[]

Notes and references[]

  1. WP favicon Io on Wikipedia
  2. Harry Potter and the Order of the Phoenix, Chapter 14 (Percy and Padfoot)
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
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