Sharing the Night Sky with the Public Since 1949
For over seventy-five years, the Denver Astronomical Society has brought together stargazers across the Denver metropolitan area and beyond. The society hosts dozens of events and activities yearly to promote amateur astronomy across our unique region, one mile nearer the stars.
-
Celebrating the 2025 Van Nattan-Hansen-Anderson Scholarship Winners
Each year, the Denver Astronomical Society (DAS) awards the Van Nattan-Hansen-Anderson Scholarship to support promising students in astronomy, astrophysics, and related sciences. We are proud to introduce this year’s recipients, each of whom is pursuing their passion for the universe
-
Test Your Eyesight on the Moon: William Henry Pickering’s 12 Features
Who Was William Henry Pickering? William Henry Pickering (1858–1938) was an American astronomer celebrated for his careful studies of the Moon, planets, and comets. He earned his early training at Harvard and later became a professor of astronomy at MIT,
-
What’s Up in Denver? September 15th through 21st, 2025
Here’s a brief look at what’s going on in the Mile High City this week. September 15: Find the waning crescent Corn Moon near the Shoe-Buckle Cluster (M35), an open star cluster in Gemini in the eastern sky: 2:00 AM September
-
Breckenridge Achieves Dark Sky Community Certification
The Town of Breckenridge has officially become a Certified Dark Sky Community, recognized by DarkSky International for its commitment to reducing light pollution and protecting the night sky. This makes Breckenridge the first mountain ski resort community in Colorado to
Chamberlin Observatory Tours
The Denver Astronomical Society hosts weekly and monthly events* at the University of Denver’s historic Chamberlin Observatory, which features its prized 1894 Alvan Clark-Saegmuller 20-inch refracting telescope. The Observatory serves as the DAS home base for numerous Astronomy Nights, Open Houses, and special events throughout the year.
Due to overwhelming demand, we are changing how we reserve our Astronomy Nights and adding more to the calendar. For details, see our Reservations page.
If you have any questions about EXISTING reservations or want to change your existing reservation, email us at reservations@denverastro.org.
Astrophotography Special Interest Group
The Denver Astronomical Society (DAS) has established a Special Interest Group amongst its members devoted to Astrophotography. Do you want to learn or improve your skills in astrophotography? Do you enjoy viewing pictures of the Sun, Moon, Planets, or Deep Sky Objects? Can you take similar images? You may have skills that you could pass on to novice members. Consider joining DAS and being part of this Special Interest Group. Please email us for more information. astrophotogroup@denverastro.org
The Van Nattan-Hansen-Anderson Scholarship
Established in 1973, the DAS Van Nattan-Hansen-Anderson Scholarship supports graduating high school and undergraduate college students majoring in astronomy and the physical sciences. Interested and eligible students are invited to apply for funding on the Scholarship Page.
