San Diego Astronomy Association (SDAA) sponsors speakers on a wide range of astronomy topics on the third Wednesday of every month at the Mission Trails Regional Park Visitors Center. The Program meeting begins at 7:00 PM. Each attendee receives one free door prize ticket. After announcements and a small amount of business, the audience is treated to the featured presentation. At the close of the meeting the door prizes are presented.  The event is open to the public. The Mission Trails Regional Park Visitors Center is at One Fr. Junipero Serra Trail, San Diego CA 92119.  Call the park at 619-668-3281 for more information or visit

Please contact Mike Chasin if you have an questions, comments, or ideas for the Program Meetings.

March 15, 2017

Speaker: Tim Thompson,  LA Astronomical Society, JPL, Mt Wilson docent

Topic: History and Science at the Mount Wilson Observatory   

SDAA Speaker

Tim Thompson retired from the Jet Propulsion Laboratory (JPL) in Pasadena as a scientist in the radio astronomy group including SETI. He has been a board member of the Los Angeles Astronomical Society and Vice President of the Mt Wilson Observatory Association, and a senior docent at Mt. Wilson. He will address the program meeting on the history and science at Mt. Wilson, scientific home of Edwin Hubble.


Upcoming SDAA Program Meetings
January No general meeting - annual banquet on February 11, 2017
February 15 R. Lee Hamm: The Cleveland National Forest and how the National Forest can better meet SDAA’s needs as a user
March 15 Tim Thompson, LA Astronomical Society, JPL, Mt Wilson docent: Mt Wilson Observatory
April 19 Joint meeting with the International Dark Sky Association
May 17 Jerry Hilburn: New Horizons Mission Update - Onward to KBO - 2014 MU69
June 21 Dr.Stella Kafka: the Large Synoptic Survey Telescope
July 19 TBD
August 16 Eclipse Photo Tips
September 20 TBD
October 18 TBD
November 15 Gadget night