The Mather Planetarium is located in the Schmucker Science Center on the north campus of West Chester University. The Schmucker Science Center sits on the corner of Church St. and Rosedale Ave. The planetarium is in the link - the one-story round portion of the building that connects the north and south (multi-story) parts of the building. There are several entrances to the Schmucker Science Center however the most direct route to the Mather Planetarium is through the entrance off of Rosedale Ave. Follow the driveway that leads behind the building from Rosedale Ave. (see map below). You will see the Sun Sculpture outside the lighted entrance for the Mather Planetarium.