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.


  • June Star Maps, Charts, and Celestial Calendars

    Charts and maps: Astronomical League Night Sky Network SkyMaps.com Telescope.com Star Chart TimeAndDate.com   Podcasts Sky & Telescope’s June Podcast   Calendars and Highlights: Farmer’s Almanac Space.com June Sky Highlights   Stargazing Tools Stellarium Web    

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  • Upcoming events Through June 1

    Night Sky Network Webinar, MakerSIG meeting, planets, star charts, and more! May 28: Webinar: Brief History of Everything with Dr. Patrick C. Breysse May 29: MakerSig Meeting June 3-4: Six Planets Walk the Line https://www.youtube.com/shorts/eDWcUUg-5YI?feature=share DAS Stargazing Forecast ChamberlinObservatory Weather/Visibility … Read More

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  • Upcoming events Through May 26

    Upcoming events Through May 26: Eboard Meeting, North American Nebula, meteors, star charts, and more! May 20, 7pm Executive Board Meeting Sky & Telescope Observing Notes Sky Maps for May 2024 AMS Meteor Outlook through May 24

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  • Upcoming Events Through May 21

    May 15: Astrophotography Special Interest Group (ASIG) – Meeting 2 of 2: Image Processing May 17: Imagine Milk presents Luna Trivia Night at Sculpture Park May 18: Private Members In Reach: Galaxy Season – Viewing and Photographing Our Neighboring Galaxies … 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