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08/21/23: Fall 2023 Classes Begin

Monday, August 21, 2023 - 7:00am to 4:00pm

10/28/22: Stargazing at Steward Observatory

Friday, October 28, 2022 - 6:00pm to 9:30pm

The Raymond E. White, Jr. 21-inch diameter telescope will be open for viewing of Saturn, Jupiter, the moon and other objects of the night sky. No reservations required; free admission. This event will be held weather permitting.

Steward Observatory, 933 N. Cherry Ave., Tucson, AZ 85719


Black and white image of Steward Observatory


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For the public
For Public

Public events include our Monday Night Lecture Series, world-reknowned Astronomy Camp and Mt Lemmon Sky Center.

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A good place to start if you want to become an undergrad major or grad student, or need to find our schedule of classes.


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Find telescopes and instruments, telescope time applications, staff and mountain contacts, and faculty and staff scientific interests.