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 ...

View Detail

Get Ready for the 2026 Eta Aquariid Meteor Shower

The May Eta Aquariids Each May, the Eta Aquariid meteor shower puts on a show in the early morning sky. These meteors get their name because they appear to radiate from the constellation Aquarius, near the star Eta Aquarii. The Eta Aquariids are known for their fast, bright meteors and are especially exciting because they are connected to one of the most famous comets in history—Halley’s Comet. Observations of this shower go back hundreds of years, and it continues to impress skywatchers today. What is a Meteor Shower? When you see a shooting star, you’re witnessing a tiny bit of…
Click here to read more
What’s Up in Denver? April 20th through 26th, 2026

Here’s a brief look at what’s going on in the Mile High City this week. April 20: 🪐 Check out Mercury, Mars and Saturn within 1.7° of each other, low in the western sky in the constellation just before sunrise. April 21: 👀 Look for the waxing crescent Pink Moon near M35, the open star cluster in Gemini also known as the Shoe Buckle Cluster high in the western sky around 9:00 PM. April 22: 🌠 The Lyrids Meteor Shower peaks late in the evening of April 21st into the early morning of the 22nd. Look for about 10-20 meteors…
Click here to read more
Get Ready for the 2026 April Lyrid Meteor Shower

Every April, the night sky lights up with a dazzling display of shooting stars during the Lyrid meteor shower. The Lyrids get their name because they seem to radiate from the constellation Lyra, which contains the bright star Vega. The Lyrids are one of the oldest recorded meteor showers, with observations dating back to at least 687 BCE by Chinese astronomers. Ancient Chinese texts described the shower as “falling stars like rain,” giving us a glimpse of how spectacular this event has been for centuries. What is a Meteor Shower? When you see a shooting star streak across the night…
Click here to read more
What’s Up in Denver? April 13th through 19th, 2026

Here’s a brief look at what’s going on in the Mile High City this week. April 13 (International Dark Sky Week continues through April 19!): DAS General Meeting: A Supernova With Broken Symmetry: Evidence from Polarized Light with Chris Pickens: Free. In-person event at the Secular Hub: 7:00 PM Mars, Saturn and Neptune within 4.5° of each other just as the sun as rising, making them difficult to observe: 6:00 AM DMNS FREE DAY from the Scientific & Cultural Facilities District: Free, In-person event at Denver Museum of Nature and Science: All Day April 14: Amateur Astronomers Association: The Fermi…
Click here to read more

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.