Open Chess Night @ the Library
5:30 pm – 7:30 pm · Longmont Public Library
Outdoors
Astronomy: Inside the Asteroid Belt
· 4:30 pm – 7 pm · Ron Stewart Preserve at Rabbit Mountain
Checked November 1, 2026 against bouldercounty.gov. Times can change; the organizer’s page is the record. Report a correction · Know something opening or closing? Tell us
Astronomy: Inside the Asteroid Belt at Ron Stewart Preserve at Rabbit Mountain, Friday, November 13, 4:30 pm – 7 pm. Listed by Boulder County; the organizer’s page has the details and any registration.
Why is there no planet between Mars and Jupiter? Explore the story of the asteroid belt and how Jupiter shaped this busy region of space.
— Boulder County, its listing