The York County Astronomical Society will offer a free public observing starwatch from 8 to 10 p.m. Saturday at the society's observatory at John C. Rudy County Park.

Participants can view the March skies with society members through a telescope and let experienced members give a tour of celestial wonders, including stars, planets, nebulae and the moon. Star Charts are available.

This event will only be held if it is clear or partly cloudy out. For all observing activities at John Rudy Park, if the weather is questionable, check the voice message at (717) 578-9109 for notice of any late cancellation. If it is clear or mostly clear, the activity will occur as scheduled. If it is completely cloudy, raining or snowing, the activity will be canceled.

For directions to the observatory, go to www.ycas.org/directions.htm. Please note that the observatory is inside the park, not at the park Administrative Headquarters. For more information on planetarium shows, special classes and other YCAS events, visit www.ycas.org.