The York County Astronomical Society (YCAS) will offer programs to the public on Saturday, Oct. 4, at the planetarium in the York Learning Center, 301 E. Sixth Ave., York.

Comet R2 SWAN was discovered Sept. 11 and is now headed toward the local evening sky in the next month with a possible new meteor shower the weekend of Oct. 4. YCAS' shows will focus on how to observe the comet and the moon.

Programs suitable for children will be "One World, One Sky" at 2 p.m. and "Max Goes to the Moon" at 3:20 p.m. Older viewers are invited to attend "Comets and Discovery" at 7 p.m. and "Forward to the Moon!" at 8:20 p.m. StarWatch programs will take place at 2:40 and 7:40 p.m.

There is an admission fee, with a discount for children and seniors. The fee will also be reduced when attendees view a second or third show. Cash and most credit and debit cards are accepted.

Private show reservations are available for groups of up to 60 people. For more information, visit http://www.astroyork.com.