Observatories
- Madison Macdonald Observatory at Colorado State University
- Little Thompson Observatory at Berthoud High School
- Chamberlin Observatory at the University of Denver
- Estes Park Memorial Observatory
Planetariums
- OtterBox Digital Dome Theater at the Fort Collins Museum of Discovery
- Fiske Planetarium at the University of Colorado Boulder
- Planetarium at the Denver Museum of Nature and Science
- Stellarium (Free software download for your home computer.)
Astronomy Clubs
Astronomy Websites
- Astronomy Picture of the Day
- Heavens Above (Satellite predictions, particularly International Space Station sightings.)
- Sky and Telescope
- NASA
Checking the Weather Forecast
- Aviation Center Radar (Click on DEN on the US Regional Images map.)
- Clear Sky Chart Fort Collins
- The Weather Channel
- AccuWeather
- Weather Underground
