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.

  • What’s Up in Denver? February 23rd through March 1st, 2026

    Here’s a brief look at what’s going on in the Mile High City this week. February 23: 👀 Look for the waxing crescent Worm Moon near the Pleiades, the brilliant open star cluster also known as Messier 45 high in

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  • Remembering DAS Member Sam Andrews

    Sam Andrews, a DAS member and Outreach Volunteer for many years, passed away on January 24, 2026. We knew Sam as a warm-hearted fellow who was passionate about sharing the night sky with others. In spite of his 6’ 8”

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  • Celebrate the People Who Make DAS Shine

    2026 DAS Spring Banquet & Awards Ceremony The Denver Astronomical Society wouldn’t be the strong, vibrant organization it is without its members. Some of you are on the front lines—hosting star parties, leading outreach events, or mentoring new observers. Others

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  • DAS Outreach Needs You (Yes, YOU!)

    My name is Maria, and I lead the Community Outreach Program for the Denver Astronomical Society. I am not an astronomer. I’m 26 years old, and I work as a park planner. My only professional or educational experience in astronomy is

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The Chamberlin Observatory

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.


M•45 – Pleiades, Seven Sisters, Subaru image by Darrell Dodge

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.


Astronomical League 50th Anniversary

Access to member profiles and forums