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.


  • Jack Eastman goes eclipse viewing!

    Longtime DAS Member and Chief Observer Jack Eastman traveled to Poplar Bluff, Missouri via Texas, courtesy of his friend and caregiver Dave Zielsdorf, to see the April 8 solar eclipse. Jack took his antique 3.5″ Alvan Clark & Sons telescope … Read More

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  • Upcoming Events Through Apr 28

    Weekly Skywatching Tips from Sky & Telescope Apr 21-22: Lyrids Meteor Shower Peak Apr 23: NSN Webinar Series: All About That Space: Science Updates with Dr. Nicolle Zellner Apr 24: MakerSIG Meeting: Designing a Finder/Guide Scope Part 3 of 4: Assembly, Adjustments, and … Read More

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  • Accepting Scholarship Applications Through June 15!

    We are now accepting applications for Van Nattan-Hansen-Anderson Scholarship recipients for 2024. Established in 1973, the Denver Astronomical Society’s Van Nattan-Hansen-Anderson Scholarship (VNHA) supports graduating high school and undergraduate college students majoring in astronomy and the physical sciences. Each year, … Read More

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  • Upcoming Events Through Apr 21

    Weekly Skywatching Tips from Sky & Telescope Apr 15: DAS General Meeting: Mysteries of the Sun – Open to the public! Apr 17: Astrophotography Special Interest Group Apr 18: Standley Lake Stargazing presents: Are We Alone? Apr 20-21: Northeast Astronomy Forum … Read More

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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, featuring its prized 1894 Alvan Clark-Saegmuller 20-inch refracting telescope. It serves as the DAS home base for numerous Public Nights, Open Houses, and special events throughout the year.

Due to overwhelming demand, we are changing how we reserve our Public Nights and adding more to the calendar. We are sold out into mid-2025 and will not open any more slots until we can revamp our reservation system and get our new teams in place. We are committed to providing you with the best experience, and we apologize for any inconvenience this may cause. Please watch for announcements on our Facebook page and our DAS News page.

If you have any questions about EXISTING reservations or would like to make changes to make changes to your 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? Ever wonder if you can take similar images? Maybe you 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