The Angell Hall Observatory is located on the roof of Angell Hall (435 S State St), on the University of Michigan's Central Campus.

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Angell Hall is the western part of a four-building complex, which also includes Tisch Hall (south), Haven Hall (southeast) and Mason Hall (northeast). Most of the entrances into the complex are open in the early evening. However, they will automatically lock later in the evening, at which time you will need MCard access to enter. The two most convenient and commonly-used entrances are:

  • East (Diag) Entrance - This entrance is located in the middle of the complex as you approach from the Diag. You will have to walk through the ground floor of Haven Hall to reach Angell Hall. If it has locked, the MCard reader is to the left of the doors.
  • West (State St) Entrance - This entrance is located facing State St, just up the outer stairs and behind the columns. Once you enter, the elevators will be immediately to your front left. If it has locked, the MCard reader is next to a column to the left of the doors.

Once inside the building, follow the posted signs for the Astronomy Open House until you reach the elevators, and take them to either the third floor (planetarium) or fifth floor (rooftop observing and other special events). Once you arrive at these floors, there will be further signs directing you to your destination.


Ample public parking, both street and structure, is available all over downtown Ann Arbor. Metered street parking generally operates from 8 am - 6 pm, thus most street parking during open house hours is free (be sure to check the meter!). Nearby parking structures include the Maynard St structure (accessible from either Thompson St or Maynard St) and Liberty Square (accessible from Washington St).