Dark Skies & Deep Space: Pegasus & the Autumn Sky
Listed by Public Events and Programs
About
As crisp autumn nights settle in, the stars of fall take center stage. Anchored by the Great Square of Pegasus, the autumn sky offers a quieter, darker window into the universe—perfect for exploring distant galaxies and subtle constellations that shine best under dark skies.
Join OSMP staff and partners from the Longmont Astronomical Society, DarkSky Colorado, and the Fiske Planetarium for an evening of guided stargazing and telescope viewing beneath Boulder’s night sky.
Together, we’ll discover:
- The Great Square of Pegasus, a landmark of the autumn sky and a gateway to finding other constellations
- The nearby constellation Andromeda and its connection to one of the most distant objects visible to the naked eye
- Fall constellations including Cassiopeia and Perseus, rich with star clusters and stories
- Why autumn skies appear darker and how that helps us see deeper into space
What to bring:
- Red flashlight or headlamp – Helps preserve night vision (avoid white light)
- Warm layers – Temperatures drop quickly after sunset
- Blanket or camp chair – Makes skywatching more comfortable
- Water and snacks – Stargazing is better when you’re hydrated and happy
- Binoculars – Many star clusters and bright objects look great with small optics
- Please leave dogs at home
People
Non-Profit / Community Organization
Recent Impacts
Location
4P39+CCH - Altona, Colorado
The Beech Shelter is located off Neva Access Road. Look for a foldout sign marking where to turn and drive down to the shelter. OSMP staff will be on site to help guide you to the parking area.
Parking is limited at the Beech Shelter. If the lot is full, additional parking is available at the Left Hand Trailhead, about a ¾-mile walk from the shelter.
