The Madison-Macdonald Observatory is open for public observing each month (usually the first and third Friday), April – November, weather permitting. Observing sessions are free and open to everyone!

October 17, 2025

Visit us during Homecoming Weekend to celebrate the Observatory’s 60th Anniversary!

Public Observing Schedule 2025

April 4: 8:30 – 9:30 pm

April 18: 8:45 – 9:45 pm

May 2: 9:00 – 10:00 pm

*May 17: 9:15 – 10:15 pm (on Saturday due to Commencement)

June 6: 9:30 – 10:30 pm

June 20: 9:30 – 10:30 pm

July 4: 9:30 – 10:30 pm

July 18: 9:30 – 10:30 pm

August 1: 9:15 – 10:15 pm

August 15: 9:00 – 10:00 pm

*September 12: 8:15 – 9:15 pm (only on second Friday this month due to home football games)

October 3: 7:45 – 8:45 pm

60th Anniversary! October 17: 7:15 – 8:15 pm

November 7: 5:45 – 6:45 pm

November 21: 5:45 – 6:45 pm

Location

1251 Libbie Coy Way, Fort Collins, CO 80521 (see map below).

Free parking is available along Libbie Coy Way or in the lot across the street.

Social Media

Check out our Facebook and Twitter pages for observing notices and astronomy news!