The William M. Staerkel Planetarium is a planetarium at Parkland College in Champaign, Illinois. It is the second largest planetarium in the state, the largest being the Adler Planetarium in Chicago, and has the first Carl Zeiss M1015 opto-mechanical star projector installed in the western hemisphere. The Staerkel Planetarium provides science education programs and light show entertainment to as many as 40,000 people each year. It has a 50-foot dome, seats 144, and private group and school show reservations can be made beyond the regular public offerings.