Planetarium Debuts New Dome Projector

Westminster College's Planetarium will debut a new 360-degree dome projector at the spring show beginning March 25 and continuing for several dates in April.

The old projection system involved several 35-mm analog slide projectors that would cycle through still images while a soundtrack played on a separate audio cassette tape. Because that format had become obsolete, the existing shows were becoming dated and new ones were increasingly difficult to locate.

The new projector takes advantage of the planetarium venue by projecting digital video over the entire dome, creating an immersive environment that can't be experienced in a home setting or traditional theater. This system reproduces high-quality digital graphics and animation to engage the audience.

According to Dr. Thomas Oberst, Westminster assistant professor of physics and director of the planetarium, the greatest advantage to the new projector is that it can run the latest shows featuring cutting-edge science. "Over the next two years, we will offer shows on extrasolar planets, black holes, and the future of manned space exploration."

The planetarium offers public shows, private showings for school and other groups, and experiential learning for Westminster students through astronomy classes and on-campus employment.

"Since 1990, when records were first kept, the planetarium has hosted more than 20,000 visitors," Oberst said. "Roughly half of those are K-12 students from nearby schools, making this one of the most visible facets of Westminster."

"Acquiring the new projector is the first step-but the most important-in modernizing the planetarium," Oberst added. "Over the next few years, if funding can be secured, we hope to replace our seats, update our sound and lighting systems, and make other aesthetic improvements in our theater."

Contact Westminster's Physics Department at (724) 946-7200 Monday-Friday, 8:30 a.m-4:30 p.m., or e-mail physics@westminster.edu for additional information or to inquire about a private showing.

To make reservations for the current planetarium show, "Two Small Pieces of Glass: The Amazing Telescope," visit www.westminster.edu/acad/phys/dept/planetarium.cfm and complete the online form.