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We provide opportunities to give back to the community by sharing your love and knowledge of astronomy with schools and other organizations.


CSAS provides a community of amateur astronomers with opportunities to learn, gather together, teach, and share.


CSAS sponsors a yearly event called Rocky Mountain Star Stare at the club’s land in Gardner, CO

About Us:

Aurora, Beautiful Pillar by CSAS Member, Ginger Mayfield

Aurora, Beautiful Pillar by CSAS Member, Ginger Mayfield

The Colorado Springs Astronomical Society (CSAS) is a nonprofit organization dedicated to the enjoyment of the nighttime sky. Our club is a member society of the Astronomical League (AL) and the International Dark-Sky Association (IDA).

We regularly meet to observe the splendors of our dark, dry, Colorado skies. In addition to monthly observing sessions, we hold monthly membership meetings on the fourth Tuesday of each month. Please check out the Monthly Meetings page for more info.

Our membership is diverse in age, education, occupation, astronomical experience and expertise. Some members have formal training in astronomy, but the majority are non-technical hobbyists. Many are beginners* who merely want to increase their understanding of the heavens.

Star parties are our most frequent activity where we meet at a dark sky site and observe the night sky. Typically, we schedule one official monthly star party and club meeting. However, many members get together on short notice for impromptu observing sessions throughout the month. Members are contacted for a last-minute impromptu through our forums.

CSAS hosts public star parties, often in conjunction with nature education programs of the El Paso County Recreation Department. We sponsor public viewing sessions at Bear Creek Nature Center, Memorial Park, Sky Sox Stadium and other local facilities. Also, we present astronomy programs for local schools and nonprofit organizations through our Outreach program.

During June-July, we host a 4-day astronomy camp-out called Rocky Mountain Star Stare (RMSS) for astronomy enthusiasts throughout the country and abroad.  CSAS owns a spectacular 35 acre parcel of land near Gardner, CO; an extreme dark sky location, that we use to host RMSS.  This property is also available to members year round to observe from.  Gardner is about a 2 hour drive Southwest from downtown Colorado Springs.

CSAS also hosts and administers the Earth Orbiting Satellite Observing Club (EOSOC) program for the Astronomical League. This observing program is open to all Astronomical League (AL) members throughout the United States and overseas.  CSAS members are automatically made AL members upon signing up.

*Owning a telescope is not required for membership in CSAS. All we do require is a spirit of adventure and willingness to enjoy the night skies.