Open Houses

Fall 2025 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 at 7:00 pm, or call us, on Friday night after 7:45 pm for an observing status at 303-492-2020.

There is no charge for the Observatory's Open House nights ... the stars are free to everyone! Sessions typically last from 1-3 hours, depending upon the weather and the quality of the night.

  • August 22 @ 8:00 pm
  • September 05 @ 8:00 pm
  • September 12 @ 8:00 pm
  • September 19 @ 8:00 pm*
  • September 26 @ 8:00 pm
  • October 03 @ 8:00 pm
  • October 10 @ 8:00 pm
  • October 17 @  8:00 pm*
  • October 24 @ 8:00 pm
  • October 31 @ 8:00 pm
  • November 07 8:00 pm
  • November 14 8:00 pm^*
  • November 21 @ 8:00 pm^
  • December 05 @ 8:00 pm

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

^Tentative due to possible CU schedule conflict
^Tentativo dado posibles conflictos con el calendario de CU

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