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

September 8:

• DAS General Meeting: The Splendor of T Corona Borealis by Dr. Jordi Casanova: Secular Hub or livestream via Zoom (check your membership email for details): 7:00 PM
• Catch the waning gibbous Corn Moon near Saturn

September 9:

• As the nights get longer and autumn approaches, look for the Great Square asterism in the constellation Pegasus. (Read more about asterisms): 9:00 PM

September 10:

• The waning gibbous Corn Moon reaches perigee (it’s closest distance from Earth at 364,777 km): 6:14 AM
• Colorado Dark Sky Certification Mentor Program: Virtual program via Zoom (registration required): 11:00 AM

September 11:

• Standley Lake Stargazing Virtual Program: Zoom Virtual Meeting: 6:00 PM

September 12:

• Astronomical League: Where is the Nearest Black Hole by Scott Harrington: Virtual program at Explore Scientific or Facebook: 5:00 PM
• Who Turned off the Stars: In-person Program at Eldorado Canyon State Park: 6:00 PM
• Durango Astronomical Society Durango Star Party: Durango Nature Center: 7:30 PM
• Look for the waning Gibbous Corn Moon near the Pleiades (Messier 45) in the constellation Taurus low in the eastern sky: 10:30 PM

September 13:

• Look for Mars to be about 2° from Spica low in the wester sky in the constellation Virgo right after sunset.
• Mercury at superior conjunction with the Sun. While not visible, our innermost planet passes into the evening sky: 5:00 AM
• Westcliffe Star Party: Smokey Jack Observatory: 8:15 PM

September 14:

• Last Quarter Moon at 4:32 AM

Check Out These Helpful Guides from DAS:

• Where to Explore the 2025 Denver Night Skies 
• When to Explore the 2025 Denver Night Skies
• What to Explore in the 2025 Denver Night Skies

Sky Map

• The pdf map of the night sky from SkyMaps.com can be found at https://www.skymaps.com/skymaps

This Week’s Meteoric Activity:

You can keep track of the activity of meteor showers as well as those beyond the limits of visual observing by visiting the NASA Meteor Shower Portal.

• Anthelion (ANT): 1:00 AM in northeastern Aquarius: 2 per hour.
• chi Cygnids (CCY): first few hours after sunset in southern Cygnus: 1 per hour.
• eta Eridanids (ERI): last hour before dawn in western Eridanus: 1 per hour.
• August beta Piscids (BPI) aka Northern delta Aquariids (NDA): 3:00 AM in western Pisces: 1 per hour
• September epsilon Perseids (SPE): last hour before dawn in eastern Andromeda: 1 per hour
• nu Eridanids (NUE): last hour before dawn in northeastern Eridanus: 1 per hour
• September Lyncids (SLY): last hour before dawn in northwestern Lynx: 1 per hour

Clear skies and happy stargazing!