Cincinnati Observatory Center

Where: 3489 Observatory Place

Night programs: 7 p.m. Thursdays and Fridays. Seats limited to 40. Reservations required.

Cost: Donations on Thursday; $5

adults, $3 children on Fridays.

Solar viewing: 1 to 4 p.m. Second and fourth Sundays. Tours start on the hour. Cost: Donation.

Special program: Monday, 6 to 9 p.m. Feb. 23. Reservations required for 200 openings.

Cost: $5 adults; $3 for children.

For full listing of programs or more information: (513) 321-5186 or www.cincinnatiobservatory.org

Boonshoft Museum of Discovery

Where: 2600 DeWeese Parkway Dayton, Ohio.

Planetarium show: 2 p.m. Monday through Friday; hourly shows from noon to 4 p.m. Saturday; 1 to 4 p.m. Sunday.

Cost: $8 adults; $6 seniors; $5.50 children ages 2-12; children under 2 and members, free.

Night sky viewing (weather permitting): 7:30 p.m. Fridays; 4 to 8 p.m., third Tuesday of each month. Free, but not handicap accessible.

For full listing of programs or more information: (937) 275-7431 (extension 137 for observatory information; extension 412 for astronomy hotline) or www.boonshoftmuseum.org

Drake Planetarium

Where: Norwood High School, 2020 Sherman Ave., Norwood.

Planetarium shows: 7 p.m. Feb. 22 and every fourth Tuesday, featuring Mars program for at least four months. Additional programs will be added, including building a Mars Rover out of Legos and operating those on a simulated Mars landscape.

Special program: NASA simulation of Mars Rover that will replicate weather and other conditions present on surface of Mars. Date and time to be set after Jan. 20.

Cost: $6 for all programs and ages.

For full listing of programs and more information: 396-5578 or www.drakeplanetarium.org