Open Houses

Fall 2026 Schedule

Our FREE Open Houses are held on most Friday evenings when CU classes are in session. We hope to see you there! 

Open houses are only held when the skies are clear. If you're not sure if we'll be open, check out our local weather, check our facebook or instagram an hour before scheduled time, or call us, on Friday night 15 minutes before scheduled time for an observing status at 303-492-2020.Ìý

There is no charge for the Observatory's Open House nights ... the stars are free to everyone! Sessions typically last from 1-2 hours, depending upon the weather and the quality of the night.

  • August 21:                           9pm-11pm
  • August 28:                           9pm-11pm
  • September 4:                      9pm-11pm
  • September 11:                    8pm-10pm
  • September 18:                    8pm-10pm
  • September 25:                    8pm-10pm
  • October 2:                           8pm-10pm
  • October 9:                           8pm-10pm
  • October 16:                           7pm-9pm
  • October 23:                           7pm-9pm
  • October 30:                           7pm-9pm
  • November 6:                         6pm-8pm
  • December 4:                         6pm-8pm

* Bilingual (Eng/Spa) community-led observation nights
* Noches de observación bilingües (Esp/Ing), liberadas por la comunidad

Artemis telescope viewing the night sky.

Please note, looking through the eyepiece of the telescopes often requires climbing a step ladder. However, we also have cameras that can take pictures of what the telescope is seeing and they will be displayed on large screens on the observing deck.

The University of Colorado Boulder is committed to providing equal access to individuals with disabilities.Ìý If you are planning to attend and require accommodations, please contact our Observatory Manager no later than 7 days before the event.Ìý We will make all reasonable efforts to fulfill requests submitted after the deadline.

No pets shall be permitted in Sommers-Bausch Observatory, except Service Animals, as defined by campus policy.