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Explore the Universe at Lowell Observatory

At Lowell Observatory, History and Science come together! Guided tours of the historic campus give visitors a chance to explore the famous path Clyde Tombaugh took the night he discovered Pluto. Experience the cosmos though widescreen multimedia shows, exhibits, live presentations, and SlipherVision, our immersive space theater. Daily safe viewing of the Sun and nightly stargazing are offered during favorable weather.

A family friendly venue, Lowell Observatory allows everyone to explore the history of the universe, as well as modern science research.


1400 West Mars Hill Road, Flagstaff, Arizona, 86001.

Hotels near Lowell Observatory

Overnight camping and overnight RV parking is not permitted.


Weather conditions play an important role in the activities and telescope viewing opportunities we are able to provide. We encourage checking the weather forecast as close to your visit time as possible.

See Flagstaff’s Current Weather


Monday through Saturday: 10 a.m. – 10 p.m.
Sunday: 10 a.m. – 5 p.m.

On certain holiday weekends Sunday hours may be extended to 10 p.m.

Overnight camping and overnight RV parking is not permitted.

Arizona observes Mountain Standard Time year round.


Covers day and evening programs; reservations not needed.

Members: Free
Under 5: Free

Adults: $15
Seniors, AAA, college students: $14
Ages 5 – 17: $8

Adults: $10
Seniors, AAA, college students: $9
Ages 5 – 17: $4

Group Discounts: Groups of 15 or more are eligible for a group discount; to qualify, you must make reservations at least 48 hours in advance. Contact Elizabeth Dodd by email or phone at 928-233-3280.

Important Reminders

Lowell Observatory is located at 7200′. You will want to pace yourself if you’re not accustomed to the high elevation. Avoid becoming dehydrated by drinking plenty of water. Dress in layers; evenings can be cold, even in the summer. In the daytime, wear sunscreen to protect against sunburn. Please note that while people walk their dogs in the nearby forest and several employees who live on Mars Hill own dogs, only service dogs are allowed in the areas of campus open to public visitation. Certain buildings and facilities may be closed for private events.

For general questions about our day and evening programs, call the Visitor Center at (928) 233-3212 during open hours (listed above).

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