"Moon charts are used to study the movement, position, and phases of the moon."
A moon chart is a written astronomical instrument. It's used to represent the position, movement and phases of the Moon, not unlike a star chart.

Astronomers usually use these for research or study. It's quite difficult to interpret one, so one who has difficulty with these charts should use a Lunascope.[1]

They are sold for 5 Galleons at Wiseacre's Wizarding Equipment in Diagon Alley.


Notes and references

  1. Harry Potter and the Prisoner of Azkaban, Chapter 3 (The Knight Bus)

Professors: Aurora Sinistra
Astronomy at Hogwarts: Astronomy department · Astronomy Tower · Astronomy Room · Astronomy Stairs · Astronomy Corridor · Astronomy reading room ·
Astronomy classroom
Astronomers: Aurora Sinistra · Copernicus · George von Rheticus · Perpetua Fancourt · Hesper Starkey
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
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