Mount Diablo Astronomical Society
M.D.A.S. was formed in 1957 as part of the National Moonwatch program. The club holds monthly meetings in Walnut Creek plus free public and society astronomy programs and star parties (March-October) on Mt. Diablo.
Usual schedule: General meetings 4th Tuesday 7:15-9pm (3rd Tuesday in November, none in December); star parties March-OctoberOpen to: Anyone