Planet Days

See the planets at their best and brightest with our special, public events in 2020

Venus Friday

Feb 28, 2020
7:00 pm - 9:00 pm

At the Cincinnati Observatory

It’s not a bird, it’s not a plane, it’s not a UFO! 

That bright light in the sky just after dark is the planet Venus and you’ve probably seen it on your drive home from work or school.  This is your chance to marvel at the planet up close and personal through the Observatory telescopes.

Venus Friday includes talks that share the latest NASA images, tours of the Observatory buildings, and viewing of Venus and the Moon through the historic telescopes (weather permitting). 

Admission:     $10/adult, $5/kid

Free for Observatory members (Join that night and get free admission)

No reservations required.  Perfect for all ages.

For more info call 513-321-5186.

Moonday Monday

Mar 9, 2020
7:30 pm - 9:00 pm
Full Moon

Attention Moon lovers and Luna-tics!  This is one program you cannot miss. 

Enjoy a special presentation about the Moon including phases, features, eclipses, missions, and myths.  Then, the Moon will hit your eye like a big pizza pie when you look through our historic telescope (weather permitting). 

This is also the night of a Supermoon, so don’t miss Moon-rise at 7:48pm

Admission:     $5/person donation requested

Space is limited. Reservations required by calling 513-321-5186.

Pi Day

Mar 14, 2020
7:00 pm - 10:00 pm
Pi Day

Celebrate your favorite mathematical constant π.  March 14 (3.14) is Pi Day.

The Cincinnati Observatory will host a Pi Day great for all ages. Visitors will demonstrate Pi in action, and be able to easily measure the circumference, area, and volume of the domes and planets.

And we'll have various pies provided by O Pie O

Weather permitting, we will use the historic telescopes to view Venus and the stars in the night sky.

Admission:     $15/adult, $10/child, $10 for Observatory members

Space is limited.  Reservations required by calling 513-321-5186 or