Open to the Public


The EAC Discovery Park Campus is open to the public Monday, Wednesday, and  Friday, 8:00 a.m. to 4:00 p.m.; Tuesday and Thursday 1:00p.m. to 4:00p.m.; and Saturdays from 4:00 p.m. to 9:00 p.m. If skies are cloudy, it is very windy, or the Moon is near full on Saturday night, we will close the campus early because it is not possible to safely and effectively use the Tinsley 20" telescope. The main attractions available to the public are conducted in the Gov Aker Observatory building. All of these activities are offered free of charge (except for special events). The Gov Aker Observatory houses a series of of galleries allowing visitors the opportunity to view artifacts from early Gila Valley history on loan from the Graham County Historical Society, including a heliograph - used by the army in the late 1800s to communicate using the sun to send morse code signals, and a collection of minerals mined in the region.

Other gallery exhibits demonstrate to visitors how light is composed of many colors and light waves.  Another exhibit demonstrates how telescope mirrors are constructed under the University of Arizona football stadium, and another explains part of the history of astronomy.

There is an Augmented Reality Topography Sandbox which demonstrates and teaches about topography, erosion, and other geographic lessons.

During the day visitors can see the image created by one of the world’s largest camera obscuras

The Space Shuttle Polaris takes visitors on a virtual tour through the solar system. This high-tech motion simulator blasts off from the Discovery Park Campus, over the 10,720 foot Mt. Graham, to visit each of the planets in the solar system. The on-board “computer” describes the journey to make it a very educational and entertaining experience. Hold on because we don't want any crash landings!


Special Public Events

Throughout the year, EAC and other community groups offer public events at the Discovery Park Campus. These are usually advertised in advance and may include an entrance fee. Events offered in the past include poetry recitals, Astronomy Day, storytelling events , and star parties.

For information about public tours or to make a special reservation, contact the Discovery Park Campus at or (928)428-6260.