| Name: | San Jose Astronomical Association |
| Address: | P.O. Box 28243, San Jose, CA 95159-8243 USA |
| Contact: | |
| Phone: | |
| Email: | |
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| Members: | |
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| Name: | San Mateo County Astronomical Society |
| Address: | P.O. Box 974, Station A, San Mateo, CA 94403 USA |
| Contact: | Mike Ryan |
| Phone: | 650-592-3192 |
| Email: | prasad_astro@lycos.com |
| URL: | |
| Members: | |
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| Name: | Santa Barbara Astronomical Unit |
| Address: | 2559 Puesta Del Sol Road , Santa Barbara, CA 93105-2998 USA |
| Contact: | Dale Lowdermilk |
| Phone: | 8055649002 |
| Email: | sbstardust@aol.com |
| URL: | |
| Members: | 250 |
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| Name: | Santa Cruz Astronomy Club |
| Address: | L-2 San Carlos Lane, Santa Cruz, CA 95065 USA |
| Contact: | Gary Staas |
| Phone: | 408-335-2423 |
| Email: | |
| URL: | |
| Members: | 60 members |
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| Name: | Santa Monica Amateur Astronomy Club |
| Address: | |
| Contact: | Jed Laderman |
| Phone: | 818-999-6801 |
| Email: | jedsl@earthlink.net |
| URL: | |
| Members: | 48 members |
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| Name: | Schwartz Astronomical Society |
| Address: | Astronomy Dept., San Diego State Univ., San Diego, CA 92182 USA |
| Contact: | F. D. Talbert |
| Phone: | |
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| URL: | |
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| Name: | Sidewalk Astronomers of Sacramento |
| Address: | 3728 Schutt Way, Sacramento, CA 95838 USA |
| Contact: | J. Douglas Wolfe and Franklin Anderson |
| Phone: | 916-564-5614 |
| Email: | flatfoot50@juno.com |
| URL: | |
| Members: | 15 members |
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| Name: | Sonoma County Astronomical Society |
| Address: | P.O. Box 183, Santa Rosa, CA 95402 USA |
| Contact: | Keith Payea |
| Phone: | (707) 566-8935 |
| Email: | kpayea@bryantlabs.net |
| URL: | |
| Members: | 250 members |
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| Name: | South Bay Astronomical Society |
| Address: | Microcosm, 401 Coral Circle, El Segundo, CA 90505 USA |
| Contact: | Jim Wertz-John Collins Treasurer |
| Phone: | 310-539-9444 |
| Email: | 01-01-1999 |
| URL: | |
| Members: | 75 members |
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| Name: | Southern California Observers |
| Address: | 2010 Hillgate Way #L, Simi Valley , CA 93065 USA |
| Contact: | |
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| Members: | 60 members |
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