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			Del Valle			California	Site details.
7	NW		Livermore			California	Home of the Tri-Valley Stargazers astronomy club. Forecast also covers Pleasanton.
15	NE		Tracy Airport			California
17	W		Fremont			California	The town in Alameda country.
18	NW		San Ramon			California	Site of outreach events held by the Eastbay Astronomical Society.
18	S		Mount Hamilton			California	Home of the Lick Observatory.
18	S		Telescope Row			California	A parking lot in Joeseph D. Grant County Park used by the Halls Valley Astronomical Group for public star parties.
18	SE		Hidden Hill Observatory			California	Observatory of the Tri-Valley Stargazers
19	NW		DarkSights Observatory			California	A private observatory.
21	SW		San Jose			California	Home of the San Jose Astronomical Association.
23	N		Brentwood			California	Forecast also covers Byran and Oakley.
23	NW		Mount Diablo			California	Home of the Mt. Diablo Astronomical Society.
23	W		Barking Spider Observatory			California	A private observatory near Castro Valley.
23	W		Castro Valley			California
25	S		Santa Teresa Spring			California
26	SW		Greenhawk Observatory			California	A private observatory.
26	SW		Mountain View			California
27	SW		Cupertino			California
28	NW		Concord Observatory			California	A private observatory in Concord.
28	NW		Saint Mary's College Observatory			California	AKA Geissberger Observatory. Observatory of Saint Mary's College.
28	SW		Ross Creek Observatory			California	A private observatory in San Jose.
29	N		DVHS Espace Academy			California	ESpace Academy, part of Deer Valley High School In Antioch.
29	S		Henry Coe State Park			California	A site used by SJAA and TAC
29	SW		Foothill Observatory			California	Observatory of Foothill College. Used by the Peninsula Astronomical Society for public programs. In Los Altos Hills.
29	SW		Saratoga			California
29	SW		Stanford Faculty Observatory			California	A private observatory of a faculty member of Stanford University.
29	W		Menlo Park			California
29	W		Menlo School			California	A school with an astronomy club. In Atherton
30	NW		CBA Concord Observatory			California	A private Observatory. Part of the Center for Backyard Astrophysics.
30	SW		Stanford			California	Centers on the Student Observatory of Stanford University. Home of the Stanford Astronomical Society.
31	NW		Chabot Space and Science Center			California	A science center home to the Eastbay Astronomical Society. In Oakland.
31	SW		Vista Hill			California	A lookout in Foothills Park in Palo Alto. Site of star parties held by the Peninsula Astronomical Society.
32	S		Morgan Hill			California
32	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.
33	NE		Stockton			California	Home of the Stockton Astronomical Society.
33	NW		Diablo Valley College			California	College near Concord.
33	SW		Montebello			California	Montebello Open Space Preserve is a site used by TAC
34	S		BREIT IDEAS Observatory			California	A private observatory outside Morgan Hill.
34	S		Coyote Lake			California	A county park used by members of the SJAA and TAC.Near Gilroy.
34	SW		Oak Ridge Observatory			California	Observatory of the Peninsula Astronomical Society, located in the Santa Cruz Mountains.
34	W		Ewell Observatory			California
35	NW		Oakland			California
35	W		San Mateo			California
36	NW		Lawrence Hall of Science			California	A public and school science center of the University of California at Berkeley.
36	SW		Summit View Observatory			California	A private observatory in the Santa Cruz Mountains.
36	W		CSM Observatory			California	Observatory of the astronomy department of College of San Mateo.
38	E		Modesto			California	Home of the of Stanislaus Amateur Astronomers of Modesto Jr. College.
38	SE		Dowdy Ranch Visitor Center			California	South-eastern visitors center of Henry Coe State Park.
38	SE		Newman Vista Point			California	A lookout on Interstate 5.
39	N		Rio Vista			California	A town in Solano county.
40	NW		Hercules Stargazers Alternate Site			California	An observing site of the Hercules Stargazers in Hanna Ranch Park.
40	SW		Holmes Observatory			California	A private observatory near Lompico.
42	NW		Foxboro Park			California	City park, site of the Hercules Stargaze, a public star party hosted by the Hercules Stargazers.
42	W		San Francisco			California	Home of the San Francisco Sidewalk Astronomers and the San Francisco Amateur Astronomers.
43	NE		Lodi			California
43	W		Half Moon Bay			California
44	E		Green Acres Observatory			California	A private observatory.
44	NW		Point Richmond			California
44	S		Cabrillo College Observatory			California	Observatory of Cabrillo College.
44	SW		Bonny Doon Airfield			California	A site used by the Santa Cruz Astronomy Club.
44	W		Morrison Planetarium			California	Planetarium at the California Academy of Sciences. In San Francisco.
44	W		Pacifica			California
44	W		San Francisco State University Observatory			California	Observatory of SFSU at Thornton Hall.
45	S		Hidden Valley Observatory			California	A private observatory near Soquel.
45	SE		Pacheco State Park			California	A state park used as a dark sky site.
45	SW		Pescadero			California
46	NW		Vallejo Observatory			California	A private observatory site close to Vallejo.
46	SW		Baskin Engineering Observatory			California	An observatory of the University of California, Santa Cruz.
47	E		Turlock			California	A town in Stanislaus county.
47	SE		Dinosaur Point			California	A site used by SJAA and TAC
47	SW		Santa Cruz			California	Home of the Santa Cruz Astronomy Club.
49	SW		Davenport Beach			California	A beach in Davenport.
53	NW		San Rafael			California	A site used by the used by the Marin Observers.
55	N		Vacaville			California
55	NW		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).
57	NE		Telegraph City			California	A site used by some members of the Stockton Astronomical Society.
57	NW		North Point Observatory			California	A private observatory.
58	NW		Napa			California
59	N		Blue Ridge			California	The general area of Blue Ridge, in the Vaca Mountains.
59	N		Elk Grove			California	Used for public star parties by the Sacramento Valley Astronomical Association (SVAS).
59	NE		Wilton			California
59	S		Fremont Peak			California	A site used by SJAA and TAC. Home of the Fremont Peak Observatory. In Fremont Peak State Park.
64	NW		Sonoma			California
65	N		Davis			California	A town in Yolo county.
65	NE		Pardee Reservoir Recreation Area			California	Recreation area used as an observing site by the Stockton Astronomical Society.
65	S		Maple's Observatory			California	A private observatory somewhere around Salinas.
65	S		MIRA Weaver Student Observatory			California	Public observatory of the Monterey Institute for Research in Astronomy.
69	E		Merced			California
69	N		Sacramento			California	Home of the Sacrameto Valley Astronomical Association.
71	NE		AngelKillarney s City			California	AKA Angels Camp. A town in Calaveras county.
71	S		La Mesa Urban Observatory			California	A private observatory in Monterey.
72	S		Cypress Point Club			California	A golf course.
73	NW		Robert Ferguson Observatory			California	Observatory in Sugar Loaf Ridge State Park near Kenwood.
73	NW		Sonoma State University Observatory			California	observatory in Sonoma State University. Near Rohnert Park and Cotati
73	S		Carmel			California
74	N		Rancho Cordova			California	A private site of the Sacramento Valley Active Astronomers Research Group.
75	E		Don Pedro Reservoir			California	Centered on a public scenic outlook at the north end of lake and recreation area.
76	NW		Drakes Bay visitors center			California	Officially the Kenneth C. Patrick Vistor Center. Site of astronomy classes at the Point Reyes National Seashore national park.
76	NW		Marshall			California	A town in Marin county by Tomales Bay.
77	SE		D.A.R.C. Observatory			California	A private observatory near Mercy Hot Springs.
77	SE		Panoche Pass			California
78	N		Esparto			California	Site used by the Davis Astronomers.
79	NW		Angwin			California
81	NE		Sierra Skies Observatory			California	A private observatory.
81	NW		Santa Rosa			California
81	S		Tularcitos Observatory			California	A site used by the Mira Observers Group
82	S		Pinnacles Campground			California	Campground at the east entrance of Pinnacles National Park.
83	E		Greeley Hill Observatory			California	A private observatory near Coulterville.
83	NE		Fiddletown			California	A site about 6 miles east of Fiddletown proper.
84	NE		Buena Vista Observatory			California	A private observatory.
84	NW		SPARQ Observatory			California	Observatory of SPARQ at Piner High School. In Santa Rosa.
85	E		Plettstone			California	Home of the Dale Jay Steed Observatory, a private observatory. A site used by members of TAC and the SJAA. Near Mariposa.
85	N		Folsom Lake State Recration Area			California	State recreation area norteast of Sacramento. Chart also covers the towns of Roseville and Folsom.
85	NE		Arnold Observatory			California	A private observatory.
85	NW		Putah Creek Observatory			California	Future site of a private observatory in Pope Valley.
86	NE		Heaven's Plateau			California	Site of future private observatory, Frequented by some members of the Stockton Astronomical Society . Near Wilseyville.
86	NW		Hume Observatory			California	Located within the Pepperwood Preserve and the home of GORT (Gamma ray Optical Robotic Telescope) of the Global Telescope Network.
88	NW		Occidental Observatory			California	Near Occidental.
89	NW		Forestville			California	A town in Sonoma county.
90	E		High Sierra Park			California	In the Stanislaus National Forest near Mi-Wuk Village.
90	NE		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.
90	NE		Keeton Observing Site			California	A private observing site also used by some members of the Sacramento Valley Astronomical Society
90	S		MIRA Chews Ridge Observatory			California	Observatory of the Monterey Institute for Research in Astronomy.
91	N		Penryn			California
92	NW		The Bishop's Ranch			California	Retreat and conference center.
93	S		Pfeiffer Big Sur State Park			California	State park in Big Sur.
94	N		Waltz Road			California	A a spot along Waltz road. Near Wheatland.
95	N		Ghost Pine Observatory			California	A private observatory in the Upper Capay Valley.
96	E		Mariposa Fairgrounds			California	Fairgrounds in Mariposa county.
96	N		Auburn			California	Forecast also covers the Auburn State Recreation Area
96	NE		Rancho Del Sol Observatory			California	A private observatory near Camino.
98	E		Eastman Lake Recreation Area			California	Recreation area used by the Central Valley Astronomers.
99	N		Tisdale Boat Launch			California	A public boat launch, though there is a fee.
100	SE		Mendota Wildlife Area			California	A wildlife area a few files north-east of Tranquillity.
101	NW		Vista Trail			California	Trail and overlook in Sonoma County.
101	SE		Lee DaSilva Observatory			California	A private observatory near Madera.
103	NE		Peddler Hill			California	A site used by the Stockton Astronomical Society.
105	E		Hensley Lake			California	Regular observing site of the Central Valley Astronomers.
105	N		Yuba City Astronomical Observatory			California	A private observatory in Yuba City.
106	SE		Condon Peak Campground			California	A campground on BLM land.
107	NW		Lake Sonoma			California	A site used by TAC
108	E		Artis Observatory			California	A private observatory somewhere around Yosemite Lakes.
108	NE		Bear Valley			California	A town in Alpine county. Forecast also covers Tamarack and Lake Alpine.
108	NE		Ice House Observation Plateau			California
108	NE		Shot Rock			California	A spot along the Carson Pass Highway.
109	NE		Donnell Vista			California	A recreation area in the Stanislaus National Forest.
109	NE		Foresthill			California
109	S		Limekiln State Park			California	State park near Big Sur. Forcast also covers the lookout tower at Cone Peak.
110	E		Ahwahnee Hills Observatory			California	A private observatory located in Ahwahnee.
110	N		Rock Hill Observatory			California	A private observatory in Grass Valley.
111	E		Coarsegold			California
112	NW		Clear Lake			California	Covers the Clear Lake area inclunding Boggs Mountain State Forest.
113	E		Horsetail Fall			California	A seasonal waterfall in Yosemite National Park.
113	N		Penn Valley			California
113	NW		Taylor Observatory			California	A community Observatory in Kelseyville.
115	E		Bayt Observatory			California	A private observatory near Coarsegold.
115	E		HOLT Observatory			California	A private observatory.
116	E		Glacier Point			California	A site of public star parties. In Yosemite National Park.
118	N		NCC Robotic Observatory			California	Observatory of Sierra College in Grass Valley.
120	N		James Clerk Maxwell Observatory			California	A private observatory near Nevada City.

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