Areas of knowledge
Divination Magic and magical theory


"Jupiter's biggest moon is Ganymede, not Callisto ... and it's Io that's got the volcanoes ... I think you must have misheard Professor Sinistra, Europa's covered in ice, not mice."
-- Hermione Granger (OP14)


Astronomy is the study of celestial bodies and their movements. In typical Muggle usage, “astronomy” denotes a scientific discipline. In the wizarding world, astronomy also encompasses astrology and connects with Divination, particularly for the Centaurs. Astronomy affects magic in direct ways, which is why the subject is studied at Hogwarts.

Some of the astronomical events and facts which are important to spellwork and potion-making:

  • the phase of the moon
  • the position and surface features of the moons of other planets as well as our own
  • the positions of various stars


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