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			Brentwood			California	Forecast also covers Byran and Oakley.
8	NW		DVHS Espace Academy			California	ESpace Academy, part of Deer Valley High School In Antioch.
12	W		Mount Diablo			California	Home of the Mt. Diablo Astronomical Society.
15	W		Concord Observatory			California	A private observatory in Concord.
15	N		Rio Vista			California	A town in Solano county.
18	S		Livermore			California	Home of the Tri-Valley Stargazers astronomy club. Forecast also covers Pleasanton.
18	SW		San Ramon			California	Site of outreach events held by the Eastbay Astronomical Society.
18	W		CBA Concord Observatory			California	A private Observatory. Part of the Center for Backyard Astrophysics.
19	SW		DarkSights Observatory			California	A private observatory.
21	W		Diablo Valley College			California	College near Concord.
22	E		Stockton			California	Home of the Stockton Astronomical Society.
22	SE		Tracy Airport			California
23	S		Del Valle			California	Site details.
23	W		Saint Mary's College Observatory			California	AKA Geissberger Observatory. Observatory of Saint Mary's College.
26	SW		Barking Spider Observatory			California	A private observatory near Castro Valley.
27	NE		Lodi			California
27	SW		Castro Valley			California
28	W		Chabot Space and Science Center			California	A science center home to the Eastbay Astronomical Society. In Oakland.
30	W		Lawrence Hall of Science			California	A public and school science center of the University of California at Berkeley.
30	W		Hercules Stargazers Alternate Site			California	An observing site of the Hercules Stargazers in Hanna Ranch Park.
31	NW		Vallejo Observatory			California	A private observatory site close to Vallejo.
31	SW		Fremont			California	The town in Alameda country.
31	W		Foxboro Park			California	City park, site of the Hercules Stargaze, a public star party hosted by the Hercules Stargazers.
33	NW		Vacaville			California
33	W		Oakland			California
37	NE		Elk Grove			California	Used for public star parties by the Sacramento Valley Astronomical Association (SVAS).
38	NW		Blue Ridge			California	The general area of Blue Ridge, in the Vaca Mountains.
38	S		Hidden Hill Observatory			California	Observatory of the Tri-Valley Stargazers
38	W		Point Richmond			California
39	NE		Wilton			California
41	NW		Napa			California
41	S		Mount Hamilton			California	Home of the Lick Observatory.
41	S		Telescope Row			California	A parking lot in Joeseph D. Grant County Park used by the Halls Valley Astronomical Group for public star parties.
41	W		San Francisco			California	Home of the San Francisco Sidewalk Astronomers and the San Francisco Amateur Astronomers.
42	N		Davis			California	A town in Yolo county.
42	S		San Jose			California	Home of the San Jose Astronomical Association.
42	SW		Menlo Park			California
43	E		Green Acres Observatory			California	A private observatory.
43	SW		Menlo School			California	A school with an astronomy club. In Atherton
43	SW		Mountain View			California
43	SW		San Mateo			California
44	SE		Modesto			California	Home of the of Stanislaus Amateur Astronomers of Modesto Jr. College.
44	SW		CSM Observatory			California	Observatory of the astronomy department of College of San Mateo.
44	SW		Ewell Observatory			California
44	SW		Stanford			California	Centers on the Student Observatory of Stanford University. Home of the Stanford Astronomical Society.
44	SW		Stanford Faculty Observatory			California	A private observatory of a faculty member of Stanford University.
44	W		Morrison Planetarium			California	Planetarium at the California Academy of Sciences. In San Francisco.
45	SW		Greenhawk Observatory			California	A private observatory.
45	W		San Francisco State University Observatory			California	Observatory of SFSU at Thornton Hall.
46	N		Sacramento			California	Home of the Sacrameto Valley Astronomical Association.
46	SW		Cupertino			California
46	SW		Foothill Observatory			California	Observatory of Foothill College. Used by the Peninsula Astronomical Society for public programs. In Los Altos Hills.
46	W		North Point Observatory			California	A private observatory.
46	W		San Rafael			California	A site used by the used by the Marin Observers.
47	SW		Vista Hill			California	A lookout in Foothills Park in Palo Alto. Site of star parties held by the Peninsula Astronomical Society.
48	NW		Sonoma			California
48	S		Santa Teresa Spring			California
48	SW		Pacifica			California
49	S		Ross Creek Observatory			California	A private observatory in San Jose.
49	S		Saratoga			California
50	SW		Montebello			California	Montebello Open Space Preserve is a site used by TAC
50	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).
51	NE		Pardee Reservoir Recreation Area			California	Recreation area used as an observing site by the Stockton Astronomical Society.
51	SW		Half Moon Bay			California
52	E		Telegraph City			California	A site used by some members of the Stockton Astronomical Society.
52	S		Henry Coe State Park			California	A site used by SJAA and TAC
53	NE		Rancho Cordova			California	A private site of the Sacramento Valley Active Astronomers Research Group.
54	S		Oak Ridge Observatory			California	Observatory of the Peninsula Astronomical Society, located in the Santa Cruz Mountains.
54	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.
54	SE		Newman Vista Point			California	A lookout on Interstate 5.
55	N		Esparto			California	Site used by the Davis Astronomers.
55	S		Morgan Hill			California
55	SE		Turlock			California	A town in Stanislaus county.
56	NW		Robert Ferguson Observatory			California	Observatory in Sugar Loaf Ridge State Park near Kenwood.
57	S		BREIT IDEAS Observatory			California	A private observatory outside Morgan Hill.
57	S		Coyote Lake			California	A county park used by members of the SJAA and TAC.Near Gilroy.
57	S		Summit View Observatory			California	A private observatory in the Santa Cruz Mountains.
59	NW		Sonoma State University Observatory			California	observatory in Sonoma State University. Near Rohnert Park and Cotati
60	NW		Angwin			California
60	S		Dowdy Ranch Visitor Center			California	South-eastern visitors center of Henry Coe State Park.
60	S		Holmes Observatory			California	A private observatory near Lompico.
60	SW		Pescadero			California
61	NE		Sierra Skies Observatory			California	A private observatory.
64	E		AngelKillarney s City			California	AKA Angels Camp. A town in Calaveras county.
64	NE		Folsom Lake State Recration Area			California	State recreation area norteast of Sacramento. Chart also covers the towns of Roseville and Folsom.
64	S		Bonny Doon Airfield			California	A site used by the Santa Cruz Astronomy Club.
65	NE		Buena Vista Observatory			California	A private observatory.
65	NW		Putah Creek Observatory			California	Future site of a private observatory in Pope Valley.
66	NW		Santa Rosa			California
66	S		Cabrillo College Observatory			California	Observatory of Cabrillo College.
66	SE		Dinosaur Point			California	A site used by SJAA and TAC
66	SE		Pacheco State Park			California	A state park used as a dark sky site.
67	S		Baskin Engineering Observatory			California	An observatory of the University of California, Santa Cruz.
67	S		Hidden Valley Observatory			California	A private observatory near Soquel.
67	W		Marshall			California	A town in Marin county by Tomales Bay.
68	NE		Fiddletown			California	A site about 6 miles east of Fiddletown proper.
69	NW		Hume Observatory			California	Located within the Pepperwood Preserve and the home of GORT (Gamma ray Optical Robotic Telescope) of the Global Telescope Network.
69	NW		SPARQ Observatory			California	Observatory of SPARQ at Piner High School. In Santa Rosa.
69	S		Santa Cruz			California	Home of the Santa Cruz Astronomy Club.
69	SW		Davenport Beach			California	A beach in Davenport.
69	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.
70	NE		Penryn			California
71	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.
72	N		Waltz Road			California	A a spot along Waltz road. Near Wheatland.
73	NW		Ghost Pine Observatory			California	A private observatory in the Upper Capay Valley.
74	E		Don Pedro Reservoir			California	Centered on a public scenic outlook at the north end of lake and recreation area.
75	NE		Auburn			California	Forecast also covers the Auburn State Recreation Area
75	NE		Heaven's Plateau			California	Site of future private observatory, Frequented by some members of the Stockton Astronomical Society . Near Wilseyville.
75	NW		Forestville			California	A town in Sonoma county.
75	NW		Occidental Observatory			California	Near Occidental.
76	E		Arnold Observatory			California	A private observatory.
76	N		Tisdale Boat Launch			California	A public boat launch, though there is a fee.
76	NE		Keeton Observing Site			California	A private observing site also used by some members of the Sacramento Valley Astronomical Society
77	NW		The Bishop's Ranch			California	Retreat and conference center.
79	NE		Rancho Del Sol Observatory			California	A private observatory near Camino.
79	SE		Merced			California
82	N		Yuba City Astronomical Observatory			California	A private observatory in Yuba City.
82	S		Fremont Peak			California	A site used by SJAA and TAC. Home of the Fremont Peak Observatory. In Fremont Peak State Park.
84	E		Greeley Hill Observatory			California	A private observatory near Coulterville.
85	E		High Sierra Park			California	In the Stanislaus National Forest near Mi-Wuk Village.
88	NW		Vista Trail			California	Trail and overlook in Sonoma County.
88	S		Maple's Observatory			California	A private observatory somewhere around Salinas.
88	S		MIRA Weaver Student Observatory			California	Public observatory of the Monterey Institute for Research in Astronomy.
89	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.
89	NE		Foresthill			California
89	NE		Rock Hill Observatory			California	A private observatory in Grass Valley.
90	NE		Peddler Hill			California	A site used by the Stockton Astronomical Society.
91	N		Penn Valley			California
92	NE		Ice House Observation Plateau			California
92	NW		Clear Lake			California	Covers the Clear Lake area inclunding Boggs Mountain State Forest.
92	NW		Lake Sonoma			California	A site used by TAC
94	NE		Shot Rock			California	A spot along the Carson Pass Highway.
94	NW		Taylor Observatory			California	A community Observatory in Kelseyville.
94	S		La Mesa Urban Observatory			California	A private observatory in Monterey.
95	S		Cypress Point Club			California	A golf course.
96	S		Carmel			California
96	SE		D.A.R.C. Observatory			California	A private observatory near Mercy Hot Springs.
97	N		NCC Robotic Observatory			California	Observatory of Sierra College in Grass Valley.
97	NE		Bear Valley			California	A town in Alpine county. Forecast also covers Tamarack and Lake Alpine.
98	N		James Clerk Maxwell Observatory			California	A private observatory near Nevada City.
98	SE		Panoche Pass			California
99	N		Nevada City			California
100	E		Donnell Vista			California	A recreation area in the Stanislaus National Forest.
101	E		Mariposa Fairgrounds			California	Fairgrounds in Mariposa county.
104	S		Pinnacles Campground			California	Campground at the east entrance of Pinnacles National Park.
104	S		Tularcitos Observatory			California	A site used by the Mira Observers Group
106	NE		Blue Canyon			California	Airport site used by the Sacramento Valley Astronomical Society.
107	SE		Eastman Lake Recreation Area			California	Recreation area used by the Central Valley Astronomers.
108	N		Feather River Observatory			California	A private observatory in Oroville.
108	NW		Galbreath Wildlands Preserve			California	Wildlife preserve of Sonoma State University.
110	NW		Sea Ranch			California	A private ranch near Gualala.
111	NE		Lightholder Optics Observatory			California	Observatory of Lightholder Optics.
111	NW		Powerpoint Lookout			California	A lookout and Ancient native American natural power spot Saratoga Springs Retreat Center. (No connection to presentation software.)
113	S		MIRA Chews Ridge Observatory			California	Observatory of the Monterey Institute for Research in Astronomy.
113	SE		Lee DaSilva Observatory			California	A private observatory near Madera.
114	E		Horsetail Fall			California	A seasonal waterfall in Yosemite National Park.
114	SE		Hensley Lake			California	Regular observing site of the Central Valley Astronomers.
115	E		Ahwahnee Hills Observatory			California	A private observatory located in Ahwahnee.
115	NW		Gualala			California
116	NE		South Lake Tahoe			California
116	S		Pfeiffer Big Sur State Park			California	State park in Big Sur.
116	SE		Mendota Wildlife Area			California	A wildlife area a few files north-east of Tranquillity.
117	E		Glacier Point			California	A site of public star parties. In Yosemite National Park.
117	SE		Artis Observatory			California	A private observatory somewhere around Yosemite Lakes.
119	SE		Coarsegold			California

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