The Orange County Astronomers (OCA) is a 501(c)(3) non-profit, civilian-led astronomy organization in Orange County, southern California. It was formed in 1967 and currently operates with around 800 concurrent members; they offer beginner courses in astronomy, and have meetings on the second Friday of every month at Chapman University. Currently, the OCA offers a dark-sky site to viewers, which includes a 22-inch Schmidt-Cassegrain telescope and public-use observation areas. In addition, the OCA has been registered as an affiliate of the Astronomers Without Borders program since March of 2012.
