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? October 20th through 26th, 2025
Here’s a brief look at what’s going on in the Mile High City this week. October 20: Look for the gas giant Jupiter next to the twins Castor and Pollux in the constellation Gemini in the eastern sky after midnight.
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Two Bright Comets on the Same October Night
On the evening of October 21, 2025, skywatchers are in for a rare celestial treat: not one but two comets—C/2025 R2 (SWAN) and C/2025 A6 (Lemmon)—will be bright enough to spot with the naked eye. To make the night even
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Double the Meteors: The Orionids and Southern Taurids Light Up October Skies
October is one of the best months of the year to catch a meteor shower. This year, skywatchers get a bonus: two meteor showers active at the same time. The famous Orionids will peak in late October, and the slower
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What’s Up in Denver? October 13th through 19th, 2025
Here’s a brief look at what’s going on in the Mile High City this week. October 13 (Indigenous People’s Day): Catch the 3rd quarter Hunter’s Moon with the twin stars Castor and Pollux in the constellation Gemini in the early
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.
