Dearborn Observatory

2131 Tech Drive

United States

Dearborn Observatory
Northwestern University

The Dearborn Observatory is open for public observing with the historic 18.5″ refracting telescope every Friday night from 9:00 – 11:00 pm.
The Friday night observation tours at the Dearborn Observatory are open to the public, and there are two hours open for visiting:
Spring/Summer Hours*:
At this time, September-January reservation times are completely full. However, guests are welcome during the walk-in hour. 

9:00 – 10:00 pm: Reservation hour only. Reservation requests received after 4 PM the day of may not be processed.
Your group will have a tour of the Observatory, and be able to look through the telescope.
Online Reservation Form

10:00 – 11:00 pm: Walk-ins welcome.
We try to allow everyone at least one opportunity to look through the telescope, but space is limited and there is no guarantee that everyone will be able to look through the telescope if we are very crowded.

There is no fee for the Friday night observation hour, however if you make a reservation for a group of 10 or more we require a refundable deposit which will be returned to you on the night of your visit. If you have questions, or need information about viewing, please call Yassaman Shemirani at 847-491-7650. If you would like to make a reservation, please use the online reservation form.

Please be advised that the dome does not have heat or air conditioning so please dress appropriately. Friday night tours are held “rain or shine,” although of course cloud cover affects viewing. Tours are hosted by Ph.D. students and/or undergraduate students majoring in Physics & Astronomy. Visitors are encouraged to ask questions.



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