Observatories
- Madison-Macdonald Observatory at Colorado State University
- FRCC Sunlight Peak Observatory
- 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
- Gates Planetarium at the Denver Museum of Nature and Science
- Fiske Planetarium at the University of Colorado Boulder
- Stellarium (Free planetarium app for your home computer.)
Astronomy Clubs
Astronomy Websites
- Astronomy Picture of the Day
- EarthSky Tonight
- Sky and Telescope
- Heavens Above (Satellite predictions, particularly International Space Station sightings.)
- NASA
Checking the Weather Forecast
- Clear Sky Chart Fort Collins
- The Weather Channel
- AccuWeather
- Weather Underground
- Aviation Center Radar (Click on DEN on the US Regional Images map.)
