

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.