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			Santa Rosa			California
3	NW		SPARQ Observatory			California	Observatory of SPARQ at Piner High School. In Santa Rosa.
8	S		Sonoma State University Observatory			California	observatory in Sonoma State University. Near Rohnert Park and Cotati
9	N		Hume Observatory			California	Located within the Pepperwood Preserve and the home of GORT (Gamma ray Optical Robotic Telescope) of the Global Telescope Network.
10	W		Forestville			California	A town in Sonoma county.
11	E		Robert Ferguson Observatory			California	Observatory in Sugar Loaf Ridge State Park near Kenwood.
11	NW		The Bishop's Ranch			California	Retreat and conference center.
11	W		Occidental Observatory			California	Near Occidental.
17	NE		Angwin			California
17	SE		Sonoma			California
22	SW		Marshall			California	A town in Marin county by Tomales Bay.
24	W		Vista Trail			California	Trail and overlook in Sonoma County.
25	NE		Putah Creek Observatory			California	Future site of a private observatory in Pope Valley.
25	SE		Napa			California
25	SE		North Point Observatory			California	A private observatory.
27	NW		Lake Sonoma			California	A site used by TAC
32	SW		Drakes Bay visitors center			California	Officially the Kenneth C. Patrick Vistor Center. Site of astronomy classes at the Point Reyes National Seashore national park.
34	E		Blue Ridge			California	The general area of Blue Ridge, in the Vaca Mountains.
34	S		San Rafael			California	A site used by the used by the Marin Observers.
35	SE		Vallejo Observatory			California	A private observatory site close to Vallejo.
37	N		Taylor Observatory			California	A community Observatory in Kelseyville.
37	S		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).
38	N		Clear Lake			California	Covers the Clear Lake area inclunding Boggs Mountain State Forest.
38	SE		Foxboro Park			California	City park, site of the Hercules Stargaze, a public star party hosted by the Hercules Stargazers.
40	E		Vacaville			California
40	SE		Hercules Stargazers Alternate Site			California	An observing site of the Hercules Stargazers in Hanna Ranch Park.
40	SE		Point Richmond			California
41	NE		Esparto			California	Site used by the Davis Astronomers.
41	NE		Ghost Pine Observatory			California	A private observatory in the Upper Capay Valley.
43	NW		Galbreath Wildlands Preserve			California	Wildlife preserve of Sonoma State University.
44	NW		Sea Ranch			California	A private ranch near Gualala.
47	SE		Lawrence Hall of Science			California	A public and school science center of the University of California at Berkeley.
48	S		Morrison Planetarium			California	Planetarium at the California Academy of Sciences. In San Francisco.
48	SE		Diablo Valley College			California	College near Concord.
49	NW		Gualala			California
49	S		San Francisco			California	Home of the San Francisco Sidewalk Astronomers and the San Francisco Amateur Astronomers.
50	SE		Oakland			California
51	S		San Francisco State University Observatory			California	Observatory of SFSU at Thornton Hall.
51	SE		CBA Concord Observatory			California	A private Observatory. Part of the Center for Backyard Astrophysics.
52	SE		Chabot Space and Science Center			California	A science center home to the Eastbay Astronomical Society. In Oakland.
53	E		Davis			California	A town in Yolo county.
53	N		Powerpoint Lookout			California	A lookout and Ancient native American natural power spot Saratoga Springs Retreat Center. (No connection to presentation software.)
53	SE		Saint Mary's College Observatory			California	AKA Geissberger Observatory. Observatory of Saint Mary's College.
54	SE		Concord Observatory			California	A private observatory in Concord.
57	NW		Lookout Ranch			California	A private ranch.
58	S		Pacifica			California
58	SE		DVHS Espace Academy			California	ESpace Academy, part of Deer Valley High School In Antioch.
58	SE		Mount Diablo			California	Home of the Mt. Diablo Astronomical Society.
59	E		Rio Vista			California	A town in Solano county.
60	NW		Rubicon Observatory			California	A private observatory of a member of the Ukiah Astronomical Society. Near lake Mendocino.
61	SE		Barking Spider Observatory			California	A private observatory near Castro Valley.
62	SE		Castro Valley			California
62	SE		DarkSights Observatory			California	A private observatory.
63	NE		Tisdale Boat Launch			California	A public boat launch, though there is a fee.
63	SE		San Ramon			California	Site of outreach events held by the Eastbay Astronomical Society.
64	S		San Mateo			California
66	S		CSM Observatory			California	Observatory of the astronomy department of College of San Mateo.
66	SE		Brentwood			California	Forecast also covers Byran and Oakley.
67	E		Sacramento			California	Home of the Sacrameto Valley Astronomical Association.
67	S		Half Moon Bay			California
68	S		Ewell Observatory			California
73	E		Elk Grove			California	Used for public star parties by the Sacramento Valley Astronomical Association (SVAS).
73	SE		Fremont			California	The town in Alameda country.
73	SE		Livermore			California	Home of the Tri-Valley Stargazers astronomy club. Forecast also covers Pleasanton.
74	NE		Yuba City Astronomical Observatory			California	A private observatory in Yuba City.
74	SE		Menlo Park			California
74	SE		Menlo School			California	A school with an astronomy club. In Atherton
76	S		Stanford			California	Centers on the Student Observatory of Stanford University. Home of the Stanford Astronomical Society.
77	SE		Stanford Faculty Observatory			California	A private observatory of a faculty member of Stanford University.
78	NW		Chamberlain Creek Rest Stop			California	A public rest-stop on Highway 20.
79	E		Wilton			California
79	NE		Waltz Road			California	A a spot along Waltz road. Near Wheatland.
80	S		Vista Hill			California	A lookout in Foothills Park in Palo Alto. Site of star parties held by the Peninsula Astronomical Society.
81	E		Lodi			California
81	SE		Del Valle			California	Site details.
81	SE		Foothill Observatory			California	Observatory of Foothill College. Used by the Peninsula Astronomical Society for public programs. In Los Altos Hills.
81	SE		Mountain View			California
82	S		Montebello			California	Montebello Open Space Preserve is a site used by TAC
84	E		Rancho Cordova			California	A private site of the Sacramento Valley Active Astronomers Research Group.
84	NW		Mendocino			California
84	S		Pescadero			California
84	SE		Stockton			California	Home of the Stockton Astronomical Society.
85	SE		Greenhawk Observatory			California	A private observatory.
86	SE		Cupertino			California
87	SE		Tracy Airport			California
88	E		Folsom Lake State Recration Area			California	State recreation area norteast of Sacramento. Chart also covers the towns of Roseville and Folsom.
88	E		Penryn			California
88	SE		San Jose			California	Home of the San Jose Astronomical Association.
89	E		Sierra Skies Observatory			California	A private observatory.
90	SE		Saratoga			California
93	SE		Oak Ridge Observatory			California	Observatory of the Peninsula Astronomical Society, located in the Santa Cruz Mountains.
93	SE		Ross Creek Observatory			California	A private observatory in San Jose.
94	E		Auburn			California	Forecast also covers the Auburn State Recreation Area
94	NW		Starry Kingdom Observatory			California	A private observatory in Laytonville.
94	SE		Telescope Row			California	A parking lot in Joeseph D. Grant County Park used by the Halls Valley Astronomical Group for public star parties.
96	E		Buena Vista Observatory			California	A private observatory.
96	N		Buckhorn Recreation Area			California	Recreation area and campground on Black Butte Lake. Home of the Black Butte Lake Star Party.
96	SE		Mount Hamilton			California	Home of the Lick Observatory.
97	NE		Feather River Observatory			California	A private observatory in Oroville.
97	NE		Penn Valley			California
98	SE		Hidden Hill Observatory			California	Observatory of the Tri-Valley Stargazers
99	S		Holmes Observatory			California	A private observatory near Lompico.
99	SE		Summit View Observatory			California	A private observatory in the Santa Cruz Mountains.
100	S		Bonny Doon Airfield			California	A site used by the Santa Cruz Astronomy Club.
100	SE		Santa Teresa Spring			California
101	E		Pardee Reservoir Recreation Area			California	Recreation area used as an observing site by the Stockton Astronomical Society.
102	E		Cameron Park Rotary Club Community Observatory			California	A community observatory built and operated by the Rotary Club of Cameron Park, the El Dorado County Office of Education, and Folsom Lake College. In El Dorado County.
103	NE		Rock Hill Observatory			California	A private observatory in Grass Valley.
103	S		Davenport Beach			California	A beach in Davenport.
103	SE		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.
104	NE		Meadow View Observatory			California	A private observatory.
105	NE		Chico Community Observatory			California	A community observatory in Upper Bidwell Park.
105	NE		NCC Robotic Observatory			California	Observatory of Sierra College in Grass Valley.
106	NE		Big Bird Observatory			California	A private observatory near Paradise.
106	NE		James Clerk Maxwell Observatory			California	A private observatory near Nevada City.
106	S		Baskin Engineering Observatory			California	An observatory of the University of California, Santa Cruz.
107	SE		BREIT IDEAS Observatory			California	A private observatory outside Morgan Hill.
107	SE		Green Acres Observatory			California	A private observatory.
107	SE		Henry Coe State Park			California	A site used by SJAA and TAC
107	SE		Morgan Hill			California
108	NE		Nevada City			California
108	NE		Paradise			California
108	S		Santa Cruz			California	Home of the Santa Cruz Astronomy Club.
109	E		Foresthill			California
109	SE		Cabrillo College Observatory			California	Observatory of Cabrillo College.
109	SE		Hidden Valley Observatory			California	A private observatory near Soquel.
109	SE		Modesto			California	Home of the of Stanislaus Amateur Astronomers of Modesto Jr. College.
111	E		Fiddletown			California	A site about 6 miles east of Fiddletown proper.
111	SE		Coyote Lake			California	A county park used by members of the SJAA and TAC.Near Gilroy.
113	E		Telegraph City			California	A site used by some members of the Stockton Astronomical Society.
114	E		Rancho Del Sol Observatory			California	A private observatory near Camino.
118	SE		Dowdy Ranch Visitor Center			California	South-eastern visitors center of Henry Coe State Park.
118	SE		Newman Vista Point			California	A lookout on Interstate 5.
120	E		Keeton Observing Site			California	A private observing site also used by some members of the Sacramento Valley Astronomical Society

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