Trustee Emeritus Jack Eastman: More Than Half a Century with DAS

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During the Open House on May 23, 2026, at Chamberlin Observatory, longtime Denver Astronomical Society member Jack Eastman was honored with special recognitions celebrating his decades of service to astronomy and to the Society.

Since Jack was unable to attend the DAS Spring Banquet earlier this year, the Open House became an opportunity to formally present him with the Society’s Trustee Emeritus Award, recognizing more than half a century of leadership, outreach, and dedication to amateur astronomy.… Continue reading.

What’s Up in Denver? June 1st through 7th, 2026

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Here’s a brief look at what’s going on in the Mile High City this week.

June 1: 🌖 The waning gibbous Strawberry Moon reaches Apogee, it’s farthest distance from the earth in its orbit at 406,369 km at 04:32 AM UTC June 2: 👀 Look for Jupiter, Venus, and Mercury dancing around the twins of Gemini low in the western sky just after sunset.… Continue reading.

What’s Up in Denver? May 25th through 31st, 2026

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Here’s a brief look at what’s going on in the Mile High City this week.

May 25 (Memorial Day): 👀 Look for Mars and Saturn, these two planets grace the morning sky low in the east in the constellation Pisces just before sunrise at 4:45 AM.… Continue reading.

What’s Up in Denver? May 18th through 24th, 2026

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Here’s a brief look at what’s going on in the Mile High City this week.

May 18: 👀 Look for the waxing crescent Strawberry Moon next to Venus, the “evening star” on the border of Taurus and Gemini low in the western sky just after sunset.… Continue reading.

Accepting Scholarship Applications Through June 15, 2026

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The Denver Astronomical Society is now accepting applications for the 2026 Van Nattan-Hansen-Anderson Scholarship (VNHA). Established in 1973, the VNHA Scholarship supports graduating high school seniors and undergraduate college students pursuing studies in astronomy, astrophysics, physical sciences, mathematics, and related fields.… Continue reading.

What’s Up in Denver? May 11th through 17th, 2026

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Here’s a brief look at what’s going on in the Mile High City this week.

May 11: 🌘 The waning crescent Flower Moon reaches Ascending Node, as it crosses the ecliptic plane moving from south to north of Earth’s orbital plane around the Sun.:… Continue reading.

What’s Up in Denver? May 4th through 10th, 2026

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Here’s a brief look at what’s going on in the Mile High City this week.

May 4: 🎤 DAS General Meeting – Give Peas a Chance: How Citizen Scientists Helped Solve the Photon Crisis with Dr. Donal O’Sullivan: Free, in-person event at Secular Hub: 7:00 PM 🌖 The waning gibbous Flower Moon reaches apogee, it’s farthest point in its orbit from the earth at 405,843 km.… Continue reading.

What’s Up in Denver? April 27th through May 3rd, 2026

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Here’s a brief look at what’s going on in the Mile High City this week.

April 27: 🖥️ DAS E-Board Meeting: Members’ Only virtual event via Zoom (check Slack and membership email for details): 7:00 PM April 28: 🖥️ NASA Night Sky Network Webinar: Dragonfly: NASA’s Mission to Titan with Dr.… Continue reading.

Introducing the Scientific Special Interest Group (SSIG)

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Not every astronomer is drawn primarily to beautiful views or finished images. For some, the real excitement lies in what can be measured, compared, tracked, and learned from the night sky over time.

The Scientific Special Interest Group (SSIG) was created to give that curiosity a home.… Continue reading.

What’s Up in Denver? April 20th through 26th, 2026

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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.… Continue reading.
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