155 W. Main Street
From their website:
“Otterbein University’s observatory and planetarium were donated in 1955 by Alfred Henry Weitkamp ’04 in memory of Mary Geeding Weitkamp ’09, and rededicated in honor of both in 1982. The Arch B. Tripler, Jr. Solar Observing Facility was donated in 1990. Professor Dr. Uwe Trittmann is the director of the Weitkamp Observatory.
“Facilities include 14- and 8-inch Celestron Schmidt-Cassegrain telescopes, a Meade CCD camera and guidance system, and a Spitz planetarium projector.
“The Observatory is located on the fifth floor of the McFadden-Schear science building at Otterbein University, 155 W. Main St., Westerville, Ohio (building 37 on the campus map). Use the stairwell with the planetarium signs (north side of the building, second from the eastern end).
“Apart from the Astromony Lecture Series, visitors and students may come to Weitkamp Observatory throughout the semester to observe the night sky. Check back continuously for dates, times and weather related cancellations. Please contact the department at (614) 823-1316 for more details.”