Astronomy Stairs

The Astronomy Stairs is a steep spiral staircase connecting the bottom and the top of the Astronomy Tower. Thus, it is the tallest stairway in Hogwarts Castle.

The stairway begins on the ground floor (accessible via the Middle Courtyard and Astronomy Tower courtyard) stops off at the Astronomy reading room and then continues to the Astronomy classroom at the top of the tower.

Appearances

 * Harry Potter and the Philosopher's Stone
 * Harry Potter and the Philosopher's Stone (video game)
 * Harry Potter and the Order of the Phoenix
 * Harry Potter and the Half-Blood Prince
 * Harry Potter and the Half-Blood Prince (film)
 * Harry Potter and the Half-Blood Prince (video game)