ASTRONOMY
Astronomy is a subject taught at Hogwarts School of Witchcraft and Wizardry. It is a required subject for first to fifth years but can be dropped in the sixth year. Aurora Sinistra was the Astronomy teacher at Hogwarts. Astronomy classes take place in the top-most level of the Astronomy Tower, the tallest tower in Hogwarts Castle, and include sky observation sessions with telescopes (each student has to buy one of his/her own). Astronomy is one of the only fields of study at Hogwarts which has a direct equivalent in the Muggle world. Known student activities include learning the names of stars, constellations, and planets, as well as their location and movements, and describing the environments of planets and moons.