Registration is open for the first monthly show at the T.C. Williams High School Planetarium.

The first show­ includes "This Month in Space History," "The Reason for the Seasons," and "A Walk Across the Night Sky."

The show begins at 7:30 Tuesday, Sept. 28. Ticket pick-up is from 7 – 7:20 p.m. that evening.

Interested viewers may register online or call the planetarium at 703-824-6805 ext. 6300.

Registration for each monthly show opens the first Monday of the month at noon and is limited to the first 35 people.