Bartlesville Astronomical Society is an amateur astronomy club, founded in 1958, in Bartlesville, Oklahoma. Bartlesville Astronomical Society (BAS), a nonprofit, tax-exempt 501(c)(3) organization, is dedicated to promoting astronomy education and awareness of astronomical and space-related events among its members and the public. BAS is led and operated by volunteers. 

BAS is open to everyone with an interest in astronomy, at all levels of expertise. Some of our members are astronomy enthusiasts with decades of experience; others have just recently taken up the hobby of amateur astronomy. You do not need to own a telescope to be a member. In fact, we encourage you to join BAS and attend some observing events before you invest in a telescope, so you can sample various types of observing equipment and get advice from our helpful, experienced members.

Our monthly meetings are open to the public and guests are welcome. We also host public and members-only observing sessions (star parties). Our youth group, called Bartian Youth Astronomers (BYA), for ages seven through high school, was very active before the COVID-19 pandemic but is currently on hiatus.  Youth, with a parent or guardian, are welcome at all of our Club meetings and other events, which are all family-friendly.

For more information, please visit our website: 

Bartlesville Astronomical Society