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.


  • Upcoming Events Through May 12

    May 6: General Meeting: Planet Earth, Past and Present: Parallels Between our World and its Celestial Neighbors May 6: Eta Aquariids Meteor Showers Continue May 11: Open House at Chamberlin Observatory Weather Charts: Chamberlin Observatory Weather/Visibility Chart Kline-Dodge Dark Site Weather/Visibility Chart … Read More

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  • Night Sky Notes – May 2024: Starter Stargazing

    This article is distributed by NASA’s Night Sky Network (NSN). The NSN program supports astronomy clubs across the USA dedicated to astronomy outreach. Visit nightsky.jpl.nasa.gov to find local clubs, events, and more! By Kat Troche Millions were able to experience … Read More

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  • Skyward – May 2024

    by David H. Levy A Total Eclipse of the Sun, part Two. This is a story, not a report on observations. On April 8, a total eclipse of the Sun tracked across Mexico, the United States, and Canada. Most of … Read More

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  • Upcoming Events Through May 6

    April 29: Eboard Meeting May 1: Astrophotography Special Interest Group (ASIG) May 4: MEMBERS ONLY: KDDS Orientation May 5-6: Aquariids Meteor Shower Peak May 5-7: Dark Sky Weekend Denver Weather/Visibility Chart May SkyMaps Sky & Telescope Observing Opportunities through May … 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 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 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