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Dept of Astronomy/Steward Observatory

Hours of Operation: Monday through Friday, 8:00am to 5:00pm

Main telephone number: (520) 621-2288


Steward Observatory Main Fax: (520) 621-1532

SO Tech Park Fax: (520) 621-3398


Mailing Address and Street Address


Department of Astronomy/Steward Observatory 
933 North Cherry Avenue, Rm. N204 
Tucson, AZ 85721-0065


Shipping Address


Steward Observatory Annex 
1540 East Second Street 
Tucson, AZ 85721-0064

Director: Buell T. Jannuzi, Associate Director: Jeffrey S. Kingsley


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Undergraduate Program Contact

Professor Brenda Frye

Graduate Program Contact

Associate Professor Kaitlin Kratter


Lodging Information for visitors


Directions to the University

Parking at the University


Departmental Maps


Steward Observatory Visitor Map



For issues regarding Building 65 (Steward Observatory, including Dome), Building 64 (Steward Observatory Annex), Building 64a (Temp Modular Building)

Building Manager: Mark Buglewicz 520-621-6536
Building Monitor: Gabe Coronado 520-304-6880
Property Coordinator:
Email: (reaches all three)

For website-related issues contact


For the public
For Public

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

For Students

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


For Scientists
For Scientists

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