The Battle Point Astronomical Association will present the planetarium show “Silly Star Wars Xmas Special” at 7:30 p.m. Saturday, Dec. 14 at the Edwin E. Ritchie Observatory in Battle Point Park.

Join BPAA to learn why it’s good to be naughty when Darth Santa is in town. Astronomer Dave Fong will also take you on an interstellar sleigh ride to visit real planets that resemble worlds in Star Wars.

If the sky is clear, astronomers will be on hand with telescopes.

Admission is free to BPAA members; a $2 donation is suggested for nonmembers, $5 for families.

BPAA is a nonprofit amateur astronomy organization that operates the Ritchie Observatory and John H. Rudolph Planetarium in the Helix House at Battle Point Park, 11299 Arrow Point Drive NE.

For more information, call 206-842-9152 or visit http://bpastro.org/.