Get Ready for Galaxy Season!

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A Brief History of Galactic Observation

The Andromeda Galaxy, the closest large galaxy to our own Milky Way, has been visible to the naked eye for as long as humans have gazed at the stars. The first recorded observation dates back to 964 CE when the Persian astronomer Al-Sufi described it as a “little cloud.”… Continue reading.

What’s Up in Denver? March 17th through 23rd, 2025

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

March 17: The Moon reaches apogee (252,123 miles / 405,754 km away – its farthest distance from Earth in its elliptical orbit): 10:00 AM. St. Patrick’s Day March 18:

Astronomical Observing 101 Class: 7:00 PM at Secular Hub Community Center (Registration Required).… Continue reading.

What’s Up in Denver? March 10th through 16th, 2025

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

March 10: Look for the waxing gibbous Worm Moon near the Beehive Cluster (M44) high overhead in Cancer around 10:00 PM. March 11: The Search for Interstellar Objects of Technological Origin (Free, Virtual Lecture from Hamptons Observatory) – 5:00 PM (Registration Required).… Continue reading.

Get Ready to See the Zodiacal Light

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What is Zodiacal Light?

Zodiacal light is a faint, glowing band of light that stretches across the night sky. It looks like a soft triangle of light, and it appears along the path the Sun travels through the sky, known as the ecliptic.… Continue reading.

Counting Frogs and Looking at Stars in Douglas County

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Acoustic Monitoring Scientists have developed clever ways to study wildlife without disturbing them. One such method is called acoustic monitoring, which is used to estimate the population of amphibians, like frogs, in the wild. Instead of capturing or counting them one by one, researchers perform manual calling surveys (MCS).… Continue reading.

AL/NASA 35 Years of Hubble March Challenge

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Last month, we discussed the Hubble’s Night Sky Observing Challenge and the February 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 the month of March.… Continue reading.

What You Need to Know About the 2025 Total Lunar Eclipse in Denver

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The upcoming total eclipse of the full Worm Moon on March 13–14, 2025, presents a remarkable opportunity for Denver skywatchers to observe this celestial event. Here’s a comprehensive guide covering the timing, phases, scientific background, and observing tips.

What Causes Lunar Eclipses and What’s a Blood Moon?… Continue reading.

What’s Up in Denver? March 3rd through 9th, 2025

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

March 3: NASA/AL Hubble Night Sky Challenge has released 4 targets for March. (more info) March 4:

Astrophotography Special Interest Group (ASIG) – General Meeting for DAS Members: 7:00 PM (more info).… Continue reading.

New Member Orientation

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Welcome to the Denver Astronomical Society!

The Denver Astronomical Society (DAS) is growing fast! With over 1,100 members and counting, we welcome new astronomy lovers all the time. To help new members get started, we hold New Member Orientations about every four months at the historic Chamberlin Observatory.… Continue reading.

Astrocon 2025!!!

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This year, we’ll be under the stars for the Astronomical League conference! June 25-June 28, 2025, Ruby’s Inn, Bryce Canyon City, Utah 26 South Main Street www.rubysinn.com Sponsored by the MARS Region of the Astronomical League Check out the ASTROCON 2025 Brochure! … Continue reading.
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