Viewing Night on the 36-inch Research Telescope

Dedicated in 1956, the 36-inch Telescope near the top of Mt. Locke remains a powerful window on the universe. Its long focus allows for awesome views of the planets as well as excellent, high contrast views of deep space objects like globular clusters, planetary nebulae, and galaxies. Although not our largest telescope open for public viewing, the 36-inch has the great advantage of the Visitors Center securing more nights for public programs than on either the 82-inch or 107-inch, while still providing excellent views. Join us for a 36-inch Special Viewing Night and we're sure you'll agree!

With low levels of illumination, step-ladders, and a duration of 3 to 3.5 hours, this program is not suitable for young children and may not be for those with mobility issues. This program requires moderate physical agility and ability to ascend/descend 3 - 5 steps on a step ladder. The 36-inch dome is NOT wheelchair accessible. The fee for programs in 2018 is $75 per person (no senior, military, student, child, or group discounts).  (Fee subject to change w/o notice.)

Because the 36" Telescope is located near the summit of Mt. Locke, you will be leaving your vehicle at the Visitors Center and will be shuttled by the program host to the summit. This means that there will be no opportunity to retrieve a forgotten jacket or other item and leaving the 3-3.5 hour program early is not an option. Please keep this in mind when making your plans. It is NOT possible to participate in both a Star Party and a Special Viewing Night program on the same night.

Before you sign up, be sure to check out our remote location.

Waiting lists are available via our reservation system (see below). However, cancellations are rare for our Special Viewing Nights so you may be better off planning for a different date than waiting for a cancellation on an already sold out program. Adding a waiting list request for other dates will not result in a program being added for those dates. New dates are typically released in March (for April - July), July (for August - November), and November (for December - March).


The 0.9-meter (36-inch) Telescope at McDonald Observatory. Credit: Kevin Mace/Mc

0.9-meter (36-inch) Telescope, Dome