The Astronomical Association of Northern California is a non-profit corporation for fostering astronomy in Northern California.  We serve as a central location for member astronomy clubs, amateur astronomers and professionals throughout the area to share information about events and news regarding their organizations. Clubs and other interested organizations: support and join AANC - then appoint a PR person to post events here. Once your group is a supporting member - a sponsor link to your orga …

The Robert Ferguson Observatory (RFO) is Northern California's most active public observatory. We are located in the ( Sugarloaf Ridge State Park ) in Kenwood , CA . Just 10-minutes east of Santa Rosa ! Robert Ferguson Observatory offers educational classes in both solar and night sky observing, along with use of our three different telescopes: a 24-inch reflector, an 8-inch refractor, and a 14-inch CCD. If astronomy interests you; or you’re an astronomer yourself, please consider joining the Ro …

Check out speakers, attend workshops and DIY sessions, get together with amateur enthusiasts and professionals alike, and explore our Universe from the surface of a tiny rock teeming with psychotic apes! Any topic relevant to physics, cosmology, astronomy, space sciences, natural sciences, engineering and speculation of our future is welcome.