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.
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What’s Up in Denver? December 8th through 14th, 2025
Here’s a brief look at what’s going on in the Mile High City this week. December 8: Astronomy on Tap – Boulder with Dr. Mathias Nordvig, Dr. Lauren Blum, and Tiffiny Costello (Free in-person program):📍Rayback Collective: 6:00 PM SCFD Denver
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AL/NASA 35 Years of Hubble December Challenge
Last month, we discussed the Hubble’s Night Sky Observing Challenge and the November targets announced by the Astronomical League and NASA to celebrate 35 Years of the Hubble Space Telescope. These organizations have announced a new set of targets for
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What’s Up in Denver? December 1st through 7th, 2025
Here’s a brief look at what’s going on in the Mile High City this week. December 1: Catch Mercury rising before the Sun in the constellation Libra in the eastern sky around 6:00 AM December 2: December is a great
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What’s Up in Denver? November 24th through 30th, 2025
Here’s a brief look at what’s going on in the Mile High City this week. November 24: DAS E-Board Meeting: Virtual over Zoom (Check membership email and Slack for details): 7:00 PM November 25: As winter draws closer, look for

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.

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.
