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.

20
June
8:30 pm - 8:30 pm

Open House

Looking for a FREE fun family activity? Join the Denver Astronomical Society for our monthly Open House Saturday night at dusk. This event will occur on the south lawn of DU’s historic Chamberlin Observatory, 2930 E. Warren Avenue, Denver. Weather … 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 5    

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  • Pictures from the 2024 Eclipse at Chamberlin

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  • Observation report April 8, Richard and Lisa Siegel

    Submitting an observation report for April 8. Richard and Lisa Siegel went to Sherbrooke in Quebec to watch the full solar eclipse. Many pictures were taken, but in my opinion, these four “tell the story”.  We had no clouds and temperatures in the 50s so perfect eclipse watching weather. Also the Quebecois were excellent hosts even though we don’t speak French. My husband used a Canon EOS 5D camera with a 70 to 200 mm lens.  Lens was set at 200 but he used an 2x optical multiplier which took him to 400.  And he used an iOpton Sky Guide…

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  • 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 (circa 1870), using the Herschel wedge to make projections during the partial phases, then doing direct observations through it during the total phase. Jack said that this was only his third time seeing a total solar eclipse but by far his best one. The 2,038 mile round trip was worth it, he said – no doubt the longest time he…

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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

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