Meet at the Wheaton House, where Mike and Mary Sinkovich will give us some tips about telescopes. At dusk, we’ll move to a field where viewing is ideal. Bring a cheap flashlight to transform into a red light with nail polish. Dress for the weather. All levels of stargazers welcome. Total cloud-out and rain are unpredictable; call the park if the weather looks iffy. Fee: $5/person or $15 for families; members, free. Rain date: Sunday, May 28, 8:30 p.m.