Volunteering is a great way to learn and enrich your own astronomical knowledge
Eagle Nebula by Bill Hughes
Learn more about the night sky through DAS events
DU’s historic Chamberlin Observatory continues to delight visitors
Astrophotos by our members bring deep sky wonders up close
2026 VNHA Scholarship - Apply by June 15th!

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

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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Astro Update – May

Astronomy and space news summarized by Don Lynn from NASA and other sources Black Hole Magnetic Field – In 2019, astronomers unveiled the first ever picture of a black hole, or more precisely, the material surrounding the supermassive black hole at the center of galaxy M87. Further processing of that image data by the Event Horizon Collaboration revealed the polarization of its light. This polarization is caused by electrons deflected by magnetic fields, so the new image shows magnetic fields around that black hole. Astronomers expected the light around a black hole to be mostly polarized, but found it only…
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President’s Corner – May

Many of you have made my day by replying to my May 4 all-member email, for which I am very grateful. Some had questions, some respond to specific requests for feedback and involvement, and others wanted to express their feelings about the unwelcome cancellations and changes that are the result of the coronavirus pandemic and the public health safety measures that had to be instituted. No matter the reason for your response, I welcomed all of those replies. As a result, we have some fresh volunteers to present for In-Reach member education events, which will resume online beginning June 5.…
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Skyward – May

By David H. Levy A long time ago, while I was writing my biography of Clyde W. Tombaugh, discoverer of Pluto, I learned from him that he had discovered other objects during his long search at the Lowell Observatory in Flagstaff, Arizona. He found many asteroids during his time at Lowell Observatory, at least one comet, and, surprisingly enough, one nova. In February 1986, I visited Flagstaff in an effort to locate the nova that he found. It was a painstaking, tedious task but I loved it anyway. Because Clyde had been so careful recording his observations from each photographic…
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2021’s New Members

The Denver Astronomical Society welcomes these members, new since January 1, 2021. We hope you enjoy all the club has to offer!
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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.