Clear Sky Chart

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Distance Mi	Bear -ing	S p o n s o r e d?	Chart	Preview color key	Light Pollution	Prov/State	Comments/Links
0			Mount Diablo			California	Home of the Mt. Diablo Astronomical Society.
5	NW		Concord Observatory			California	A private observatory in Concord.
7	NW		CBA Concord Observatory			California	A private Observatory. Part of the Center for Backyard Astrophysics.
9	S		San Ramon			California	Site of outreach events held by the Eastbay Astronomical Society.
10	NE		DVHS Espace Academy			California	ESpace Academy, part of Deer Valley High School In Antioch.
11	NW		Diablo Valley College			California	College near Concord.
11	W		Saint Mary's College Observatory			California	AKA Geissberger Observatory. Observatory of Saint Mary's College.
12	E		Brentwood			California	Forecast also covers Byran and Oakley.
< 15			DarkSights Observatory			California	A private observatory.
15	SW		Barking Spider Observatory			California	A private observatory near Castro Valley.
15	W		Chabot Space and Science Center			California	A science center home to the Eastbay Astronomical Society. In Oakland.
16	SE		Livermore			California	Home of the Tri-Valley Stargazers astronomy club. Forecast also covers Pleasanton.
16	SW		Castro Valley			California
18	W		Lawrence Hall of Science			California	A public and school science center of the University of California at Berkeley.
19	NW		Hercules Stargazers Alternate Site			California	An observing site of the Hercules Stargazers in Hanna Ranch Park.
20	W		Oakland			California
21	NW		Foxboro Park			California	City park, site of the Hercules Stargaze, a public star party hosted by the Hercules Stargazers.
23	NE		Rio Vista			California	A town in Solano county.
23	NW		Vallejo Observatory			California	A private observatory site close to Vallejo.
23	S		Fremont			California	The town in Alameda country.
23	SE		Del Valle			California	Site details.
26	W		Point Richmond			California
29	SE		Tracy Airport			California
29	W		San Francisco			California	Home of the San Francisco Sidewalk Astronomers and the San Francisco Amateur Astronomers.
31	SW		San Mateo			California
31	W		Morrison Planetarium			California	Planetarium at the California Academy of Sciences. In San Francisco.
33	N		Vacaville			California
33	SW		CSM Observatory			California	Observatory of the astronomy department of College of San Mateo.
33	SW		Ewell Observatory			California
33	SW		Menlo Park			California
33	SW		Menlo School			California	A school with an astronomy club. In Atherton
33	W		San Francisco State University Observatory			California	Observatory of SFSU at Thornton Hall.
34	E		Stockton			California	Home of the Stockton Astronomical Society.
34	W		San Rafael			California	A site used by the used by the Marin Observers.
35	NW		Napa			California
35	S		Mountain View			California
35	SW		Stanford			California	Centers on the Student Observatory of Stanford University. Home of the Stanford Astronomical Society.
35	SW		Stanford Faculty Observatory			California	A private observatory of a faculty member of Stanford University.
36	N		Blue Ridge			California	The general area of Blue Ridge, in the Vaca Mountains.
36	NW		North Point Observatory			California	A private observatory.
36	SW		Pacifica			California
38	S		Foothill Observatory			California	Observatory of Foothill College. Used by the Peninsula Astronomical Society for public programs. In Los Altos Hills.
38	S		Greenhawk Observatory			California	A private observatory.
38	S		San Jose			California	Home of the San Jose Astronomical Association.
38	W		Mount Tamalpais State Park			California	Centered on Rock Springs parking area, of Mount Tamalpais State Park, a site used by the San Francisco Amateur Astronomers. Also site of astronomy programs organized by the Mt. Tamalpais Interpretive Association (MTIA).
39	NE		Lodi			California
39	S		Cupertino			California
39	S		Telescope Row			California	A parking lot in Joeseph D. Grant County Park used by the Halls Valley Astronomical Group for public star parties.
39	S		Vista Hill			California	A lookout in Foothills Park in Palo Alto. Site of star parties held by the Peninsula Astronomical Society.
40	S		Mount Hamilton			California	Home of the Lick Observatory.
40	SW		Half Moon Bay			California
41	NW		Sonoma			California
41	S		Montebello			California	Montebello Open Space Preserve is a site used by TAC
41	SE		Hidden Hill Observatory			California	Observatory of the Tri-Valley Stargazers
43	S		Saratoga			California
44	S		Ross Creek Observatory			California	A private observatory in San Jose.
46	S		Santa Teresa Spring			California
47	N		Davis			California	A town in Yolo county.
47	NE		Elk Grove			California	Used for public star parties by the Sacramento Valley Astronomical Association (SVAS).
47	S		Oak Ridge Observatory			California	Observatory of the Peninsula Astronomical Society, located in the Santa Cruz Mountains.
50	NE		Wilton			California
50	NW		Robert Ferguson Observatory			California	Observatory in Sugar Loaf Ridge State Park near Kenwood.
50	SW		Pescadero			California
51	NW		Sonoma State University Observatory			California	observatory in Sonoma State University. Near Rohnert Park and Cotati
51	S		Rancho Cañada del Oro			California	An Open Space Preserve of the Santa Clara County Open Space Authority. Used by the San Jose Astronomical Association for public outreach.
52	S		Summit View Observatory			California	A private observatory in the Santa Cruz Mountains.
52	SE		Henry Coe State Park			California	A site used by SJAA and TAC
53	E		Modesto			California	Home of the of Stanislaus Amateur Astronomers of Modesto Jr. College.
54	E		Green Acres Observatory			California	A private observatory.
54	NE		Sacramento			California	Home of the Sacrameto Valley Astronomical Association.
54	S		BREIT IDEAS Observatory			California	A private observatory outside Morgan Hill.
54	S		Holmes Observatory			California	A private observatory near Lompico.
54	S		Morgan Hill			California
56	N		Esparto			California	Site used by the Davis Astronomers.
56	NW		Angwin			California
56	S		Coyote Lake			California	A county park used by members of the SJAA and TAC.Near Gilroy.
57	S		Bonny Doon Airfield			California	A site used by the Santa Cruz Astronomy Club.
57	W		Marshall			California	A town in Marin county by Tomales Bay.
58	NW		Santa Rosa			California
58	W		Drakes Bay visitors center			California	Officially the Kenneth C. Patrick Vistor Center. Site of astronomy classes at the Point Reyes National Seashore national park.
60	SE		Newman Vista Point			California	A lookout on Interstate 5.

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