January Open House Canceled Due to Weather

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Unfortunately, this weekend’s Denver Astronomical Society Open House, scheduled for Saturday, January 24, has been canceled due to weather.

The forecast is calling for bitterly cold temperatures along with snow Friday night into Saturday, creating conditions that aren’t safe or comfortable for our volunteers or visitors.… Continue reading.

What’s Up in Denver? January 19th through 25th, 2026

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

January 19 (Martin Luther King Jr. Day): Celebrating the legacy of the Reverend Dr. Martin Luther King, Jr.  January 20: Catch Jupiter within half a degree of Wasat: Delta Geminorum, the third-brightes star in the constellation Gemini, is a bright triple star system whose name means “middle” in Arabic, reflecting its position in the middle of the body of the eastern twin, Pollux: Find it and the gas giant in the eastern sky just after sunset.… Continue reading.

What’s Up in Denver? January 12th through 18th, 2026

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

January 12: DAS General Meeting: Nominations of Officers (Free in-person meeting): 📍Secular Hub: 7:00 PM January 13: The waning crescent Wolf Moon reaches apogee, its farthest from Earth at 405,438km: 2:00 PM January 14: Catch the waning crescent Wolf Moon near Antares, the bright red alpha star in the constellation Scorpius low in the eastern sky around 5:30 AM January 15: Standley Lake Stargazing (Free virtual program): Online via Zoom: 6:00PM January 16 (Dark Sky Weekend): Check out the Great Red Spot of Jupiter, with the king of our solar system having reached opposition this past week, it is extremely bright and large in the night sky.… Continue reading.

What’s Up in Denver? January 5th through 11th, 2026

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

January 5: Look for the shadow transit of Io across Jupiter’s face followed closely by the moon itself. With Jupiter close to its opposition on January 10th, Jupiter’s moons and their shadows cross the planet very close together.… Continue reading.

What’s Up in Denver? December 29th. 2025 through January 4th, 2026

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

December 29: DAS E-Board Meeting (virtual meeting): Online via Zoom (check membership email and slack for details): 7:00 PM December 30:  Get to know the open clusters of Auriga: The winter constellation of the charioteer is packed with stunning open clusters that are great for binocular viewing.… Continue reading.

What’s Up in Denver? December 22nd through 28th, 2025

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

December 22 (Last Day of Hanukkah): Discover the Stars at the Denver Christkindl Market with AstroTours (Free in-person event): 📍Auraria Campus, Tivoli Quad: 6:00 PM Ursid Meteor Shower peaks: The recent new moon should make for nice dark skies to see a shower that can produce up to 5-10 meteors an hour.… Continue reading.

What’s Up in Denver? December 15th through 21st, 2025

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

December 15: Look for the Andromeda Galaxy (M31) at Zenith: In dark skies, this galaxy can be spotted with the naked eye. It’s a great target for binocular viewing especially when directly overhead: 7:05 PM Catch the waning Geminids meteor shower – even though it peaked on the evening of December 13/14, the Geminids should still put on a show of up to 50 meteors per hour under dark clear skies after midnight.… Continue reading.

What’s Up in Denver? December 8th through 14th, 2025

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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 Museum of Nature and Science Free Day (Free in-person program):📍DMNS: 9:00 AM Look for the waning gibbous Cold Moon near the Beehive Cluster (the open star cluster, M44) in the constellation Cancer high in the southern sky: 4:00 AM December 9: Amateur Astronomers Association – Mars: where is the air?… Continue reading.

What’s Up in Denver? December 1st through 7th, 2025

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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 time to catch three Open Clusters: M36, M37, and M38 in the constellation Auriga.… Continue reading.

What’s Up in Denver? November 24th through 30th, 2025

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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 the enormous Winter Hexagon asterism rising earlier and earlier in the southeast: This asterism connects Sirius, Procyon, Pollux, Capella, Aldebaran, and Rigel and covers a vast portion of the winter night sky.… Continue reading.
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