Clear Sky Chart

Or show these results: on a map

Distance Mi	Bear -ing	S p o n s o r e d?	Chart	Preview color key	Light Pollution	Prov/State	Comments/Links
0			Coshocton			Ohio	A town in Coshocton county.
18	NW		Stillwell			Ohio
22	SE		Salt Fork State Park			Ohio	State Park near Cambridge.
24	S		Zanesville			Ohio
29	W		Miller Observatory			Ohio	Observatory at Kenyon College.
32	SW		Newark			Ohio
35	N		WCAC			Ohio	The Wilderness Center Astronomy Club is located southwest of Canton.
37	N		Wooster			Ohio
37	S		Grieser Field			Ohio	Used as a dark-sky site by the Columbus Astronomical Society. About 7 miles from McConnelsville.
38	E		Greg's Happy Place			Ohio	A private observing site.
38	NE		Fry Family Park			Ohio	A park in Pike Township
38	W		Hutville			Ohio	Hutville is located on private property located between Columbus & Mt.Vernon, Ohio.
39	NW		Warren Rupp Observatory			Ohio	An observatory Near Mansfield. Home of the Hidden Hollow star party.
41	NW		Payne's Starfield Observatory			Ohio	A private observatory in Fredericktown.
42	SW		Fred's Observatory			Ohio	A private observatory.
49	SW		Mambourg Farm Historical Park			Ohio	A park near Lancaster used for astronomy/stargazing programs by the Fairfield County Historical Parks District. Call for access.
50	NE		Don's Backyard			Ohio	A private observing site.
51	N		Astronomy Club of Akron Observatory			Ohio	An observatory of the Astronomy Club of Akron
51	NW		Rustic Lake Observatory			Ohio	A private observatory near Ashland.
51	S		Burr Oak State Park			Ohio	Centered on the Group Campground at Burr Oak State Park.
52	E		St Clairsville			Ohio	Home of the NOVAE astronomy club.
53	N		Wadsworth Observatory			Ohio	A private observatory in Wadsworth.
55	W		Kilbourne Observatory			Ohio	A private observatory near Sunbury.
56	NW		Kitt's Castle Observatory			Ohio	A private observatory somewhere around Galion.
57	SE		Lamping Homestead			Ohio	Campground in Wayne National Forest.
58	SW		Comprix Observatory			Ohio	A private observatory.
59	N		CAA Observatory			Ohio	Observatory of the Cuyahoga Astronomical Association located at Letha House Park near Spencer.
59	NE		Clarke Observatory			Ohio	Observatory of Mount Union College. In Alliance.
60	N		Eagle's Nest			Ohio	A private observatory near Akron.
60	NW		Anderson Observatory			Ohio	A private obsrevatory near Shelby.
62	E		Wheeling			West Virginia	Forecast also covers Bridgeport, OH.
62	W		Cliff's Observatory			Ohio	A private observatory near Marion.
63	W		Perkins Observatory			Ohio	Observatory of Ohio Wesleyan University .
64	N		Bath Nature Preseve			Ohio	Nature preserve and observing site of the Summit County Astronomy Club.
64	NW		Rio Riley Solar Observatory			Ohio	A private observatory
64	SW		Amanda			Ohio
64	W		Columbus			Ohio	Home of The Columbus Astronomical Society
65	E		Steubenville			Ohio
65	NE		Scenic Vista Park			Ohio	Park of the Columbiana County Park District. An observing site of the Mahoning Valley Astronomical Society.
66	S		Athens			Ohio	Home of the South East Ohio Astronomical Society and Ohio University.
67	N		Cuyahoga Valley National Park			Ohio	National park near Near Peninsula, OH.
67	N		Fishcreek Rd Observing Site			Ohio	Site of public astronomy events in Stow, Ohio.
68	E		Ramsey Observatory			Ohio	A private observatory.
68	N		LaGrange			Ohio	Home of the The Black River Astronomical Society.
69	NE		Field of Dreams Observatory			Ohio	A private observatory near Salem.
69	NW		Bucyrus			Ohio
69	SW		John Glenn Astronomy Park			Ohio	Astronomy park of the Friends of the Hocking Hills State Park.
70	W		Cobblestone Creek Observatory			Ohio	A private observatory in Southern Marion County, Ohio.
70	W		Hollow Oak Observatory			Ohio	A private observatory in Hilliard.
71	SE		Leaking Light Observatory			West Virginia	A private observatory in Waverly.
72	N		John D. Nielsen Observatory			Ohio	Observatory located on the Carlisle Reservation. Used for public observing by the The Black River Astronomical Society.
73	N		Oberlin			Ohio	Home of the Oberlin College Observatory and Oberlin Astronomy Club.
73	SE		Wilderness Skies Observatory			West Virginia	A private observatory Limestone Ridge near Martinsville.
73	SW		Asteria Observatory			Ohio	A private observatory.
74	N		Cosmic Orchard Observatory			Ohio	A private observatory near Columbia Station
76	N		Burrell Memorial Observatory			Ohio	Observatory of Baldwin Wallace University.
76	S		A & O Farm			Ohio	Observing site used by the Mid-Ohio Valley Astronomy Club. Near Parkersburg.
77	E		Raccoon Creek State Park			Pennsylvania	State park.
78	NE		Canfield			Ohio
78	NE		Tranquility Gate Observatory			Ohio	A private observatory near North Lima.
79	NW		HVAG SkyTour			Ohio	Private land and site of puiblic viewings held by the Huron Valley Astronomers Group
80	N		Solon			Ohio	Used by some members of the Chagrin Valley Astonomical Society
81	NE		Hiram College			Ohio	College in Hiram
82	NE		Mahoning Valley Cortese Observatory			Ohio	Observatory of the Mahoning Valley Astronomical Society. Near Braceville.
83	N		Lorain			Ohio
84	N		Walter E. Schuele Planetarium			Ohio	Planetarium of the Lake Erie Nature & Science Center with public observing programs. In Bay Village.
84	N		Vermilion			Ohio	A town in Erie county.
85	N		Cleveland			Ohio
85	NE		Youngstown			Ohio
86	NE		Brady's Run Park			Pennsylvania	A parkused as a star party site by the Beaver Valley Space Sciences Interest Group . Near Beaver Falls.
87	N		The Top Of The Sky Mini Observatory			Ohio	A private observatory.
88	E		Canonsburg			Pennsylvania
88	NE		Eldon Russell Park			Ohio	A county park near Burton.
88	NE		Geneva College Observatory			Pennsylvania	Observatory of Geneva College. Also known as the John Paul Schaefer Memorial Observatory.
88	W		London			Ohio	In Madison county.
89	E		Aliquippa			Pennsylvania
90	NE		Winnerwood Observatory			Pennsylvania	A private observatory
90	NW		Heidelberg College			Ohio	A college in Tiffin.
90	S		Breezy Point Observatory			West Virginia	An observatory of the Kanawha Valley Astronomical Society. Located at Camp Virgil Tate.
91	SW		Easton Woods Observatory			Ohio	Site of future private observatory near Jackson.
92	E		Waynesburg University			Pennsylvania	University in Waynesburg.
92	N		Zeppy's Astronomical Observatory			Ohio	A private observatory somewhere around Chardon.
92	NW		Ballreich Observatory			Ohio	Observatory at Camp Hertzer. Site of public observing held by the Sandusky Valley Amateur Astronomy Club (SVAAC). Also used by physics students at Heidelberg College. Near Tiffin.
93	NW		Sandusky			Ohio
95	E		Pane Observing Site			Pennsylvania	A private observing site in Marshall Township.
96	N		Penitentiary Glen Reservation			Ohio	A Lake Metropark and home of the Kevin P. Clinton Wildlife Center. Also site of the Super Star Party. Near Kirtland.
96	S		Porter			Ohio	A town in Gallia county. Forecast also covers Bidwell, Harrisburg, and Kerr.
96	SE		Possum Poop Hollow Observatory			West Virginia	A private observatory near West Union.
97	E		Mingo Creek Park Observatory			Pennsylvania	Observatory of the Amateur Astronomers Association of Pittsburgh. Near Monongahela.
97	E		Paslow Observatory			Pennsylvania	A private observatory near Bethel Park.
97	NE		Indian Hill Observatory			Ohio	Observatory of the Chagrin Valley Astronomical Society
97	NW		Wolf Creek Park			Ohio	County park.
98	N		Eastlake			Ohio
99	E		Pittsburgh			Pennsylvania	Home of the Amateur Astronomers Association of Pittsburgh and the Allegheny Observatory of the University of Pittsburgh.
99	NE		Observatory Park			Ohio	Park of the Geauga Park District . Site of astronomical, geological and meteorlogical observatories. Affiliated with the Chagrin Valley Astronomical Society. In Montville township.
99	NE		Westminster College Observatory			Pennsylvania	Observatory of Westminster College. In New Wilmington
100	E		Treesdale Observatory			Pennsylvania	A private observatory.
101	NW		Collinsport Observatory			Ohio	A private observatory on Kelleys Island.
102	E		StarGlider Observatory			Pennsylvania	A private observatory in Gibsonia.
103	E		Gettysburg Observatory			Pennsylvania	A private observatory.
103	NW		Riverbend Recreation Area			Ohio	A public park, used for public observing by the Millstream Astronomy Club. Near Findlay.
104	NE		Pittsburgh Space Weather Observation Area			Pennsylvania	A public observation area in Moraine State Park.
104	NE		SkyWatch Observatory			Ohio	A private obseratory near Hartsgrove.
105	E		HAO Observatory			Pennsylvania	A private observatory near Monessen.
105	S		Leon Observing Site			West Virginia	A private observing site.
105	S		Spencer			West Virginia
105	SE		Calhoun County Park			West Virginia	A park in Calhoun County. Used by The Wilderness Center Astronomy Club. Near Grantsville.
107	NE		Mt. Chestnut Observatory			Pennsylvania	A private observatory in Mount Chestnut near Butler.
107	NW		White Star Park			Ohio	County park and home of the Sandusky Valley Amateur Astronomy Club (SVAAC). annual star party. In Gibsonburg.
107	SE		Good Hope Observatory			West Virginia	An observatory of a member of the Central Appalachian Astronomy Club. Near Good Hope.
107	W		Champaign Star Gazers Observing Site			Ohio	About 9 miles from Urbana.
108	E		Oakmont Country Club			Pennsylvania	A golf course.
108	SE		KK's Hill			West Virginia	In Fairmont
108	SE		Horizon Planetary Observatory			West Virginia	Near Glenville.
108	W		Indian Lake State Park			Ohio	State park
109	NW		Trout Observatory			Ohio	A private observatory in Oak Harbor.
109	W		ONU Observatory			Ohio	Observatory or Ohio Northern University.
110	E		Nicholas E. Wagman Observatory			Pennsylvania	Near Deer Lakes Park, Russellton. Observatory of the Amateur Astronomers Association of Pittsburgh
110	NE		Greenville			Pennsylvania	In Mercer county. Home to the Greenville Area Astronomy Club.
110	NW		Pelee Island			Ontario	Actually, the southernmost point in Canada at the Fish Point Provincial Park. The best spot for observing Omega Centauri from Canada.
111	NE		Grove City College			Pennsylvania	College in Grove city.
111	W		John Bryan State Park Observatory			Ohio	Observatory of the Miami Valley Astronomical Society in John Bryan State Park.
112	E		Dartmoor Observatory			Pennsylvania	A private observatory.
112	E		Plum			Pennsylvania	Forecast also covers Monroeville, William D Boyce Regional Park, Penn Hills, and New Kensington.
112	N		Madison			Ohio
112	SW		Jefferson Observatory			Ohio	A private observatory.
113	E		Edgewood Observatory			Pennsylvania	A private observatory near New Kensington.
115	E		Union Street Observatory			Pennsylvania	A private observatory
115	S		Greasy Ridge			Ohio	Near Crown City. A site of the OVAS.
116	E		Uniontown			Pennsylvania
118	E		Chateau De Testa Stars			Pennsylvania	A private observing site.
118	E		Chestnut Ridge Park			West Virginia	A regional park and campground, near Coopers Rock State Forest,that is used by the WVU Astronomy Club.
118	NE		Dorset Wilderness Area			Ohio	Wilderness area open to the public.
118	NW		Luckey			Ohio	A town in Wood county.
118	NW		Refractor Heaven			Ohio	A private observatory near Genoa.
118	SW		Woodland Altars Campground			Ohio	A campground near Peebles.
119	E		Radomski Observatory			Pennsylvania	A private observatory near Jeannette.
120	E		Kunkle Park			Pennsylvania	Park in Washington(PA) township.
120	N		Point Pelee National Park			Ontario	National Park and dark sky preserve.
120	SW		Berrysville			Ohio
121	E		IUP Northpointe Regional Campus			Pennsylvania	Campus of the Indiana University of Pennsylvania. Star party site of main campus astronomy classes.
121	NW		BGSU Observatory			Ohio	Observatory of Bowling Green State University.
122	E		Johnson East Observatory			Pennsylvania	A private observatory near Connellsville.
122	NE		C-Murrinsville			Pennsylvania	A private observing site in north Butler county.
122	W		Schoonover Observatory			Ohio	An observatory staffed by members of the Lima Astronomical Society. Near Lima.
123	SW		Burg Observatory			Ohio	A private observatory in Wheelersburg.
124	W		The Troy Observatory			Ohio	A private observatory.
126	SW		Cincinnati Astronomical Society Dark Sky Site			Ohio	A dark-sky site of the Cincinnati Astronomical Society. Near Peebles.
126	SW		Caesar Creek State Park			Ohio	State Park near Waynesville.
127	E		The Kiski School Astronomy Club			Pennsylvania	A club at The Kiski School. In. Saltsburg.
127	NW		Fort Meigs Observatory			Ohio	A private observatory near Perrysburg.
127	NW		Perrysburg Observatory			Ohio	A private observatory in Perrysburg.
128	E		Kittanning			Pennsylvania	A town in Armstrong county.
128	W		Dayton			Ohio	Home of the Miami Valley Astronomical Society and their Apollo Observatory.
129	N		Leamington			Ontario
129	SE		Elk River WMA			West Virginia	A wildlife management area east of Sutton.
129	SW		Rachel A. Hutzel Observatory			Ohio	Observatory at Camp Joy. In partnership with the Warren County Astronomical Society.
130	NE		Meadville			Pennsylvania
130	NE		"Way The Held Out" Observatory			Pennsylvania	A private observatory near Conneautville.
130	SW		Blue Creek			Ohio
130	SW		Fred Bay Observatory			Ohio	Observatory of the Warren County Astronomical Society. In Hisey Park.
131	N		Camp Cedarwin Scout Camp			Ontario	A scout camp in Essex county.
131	NE		Pettis Rd Observatory			Pennsylvania	A private observatory.
133	E		Thornton Observing Site			Pennsylvania	A private observing site.
133	NE		Starshine Farm Observatory			Pennsylvania	A private observatory near Wayne.
133	NW		Ritter Observatory			Ohio	Observatory (RARC) of the University of Toledo. Also known as Brooks Observatory. In Toledo.
133	S		Charleston			West Virginia
133	S		Donald C. Martin Observatory			West Virginia	Observatory of the OVAS. Near Huntington.
133	W		New Bremen			Ohio
134	NE		Conneaut			Ohio	Also covers Ashtabula.
134	W		Thomas S. Toth Observatory			Ohio	A private observatory near Spencerville.
135	NW		Whisper Observatory			Ohio	A private observatory in Holland.
136	SW		Morrow			Ohio
137	SW		Rome			Ohio
137	W		Darke Sky Ranch			Ohio	A private observatory near Red River, OH.
138	E		Goheenville			Pennsylvania	A town in Armstrong county.
138	NW		Appold Planetarium			Ohio	Planetarium of Lourdes University in Sylvania, OH.
138	W		White Barn Observatory			Ohio	Future observatory site near Bradford.
139	N		Hallam Observatory			Ontario	An observatory of the RASC Windsor Centre. Near Comber.
139	NE		The Bruce M. Bedow Memorial Observatory			Pennsylvania	Observatory of the The Oil Region Astronomical Society. Also, home of Astroblast, a star party of ORAS.
139	NE		ORAS Dark-Sky Site			Pennsylvania	Observing site of the Oil Region Astronomical Society (ORAS).
139	NW		Monroe			Michigan
139	SW		Stonelick Lake State Park			Ohio	Home of public observing at Cincinnati Observatory. Pleasant Plain.
141	E		Pioneer Park Campground			Pennsylvania	A campground near Somerset.
141	N		Tilbury			Ontario
141	NE		GCC Observatory			Pennsylvania	Observatory of Grove City College
141	NE		Higby Hill Observatory			Pennsylvania	A private observatory.
141	NW		Black Swamp Observatory			Ohio	A private observatory near Napoleon.
141	NW		Lake Erie Metropark			Michigan	A Detroit Metro Park on the Lake Erie shore line south of Detroit. Check with the park before planning observing.
142	N		Rondeau Provincial Park			Ontario	A provincial park on Lake Erie, near Chatham.
143	NE		Edinboro University Planetarium and Observatory.			Pennsylvania	Observatory and planetarium of Edinboro University.
143	NE		Evergreen Observatory			Pennsylvania	A private observatory in Girard Township.
144	W		Middletown			Ohio
145	E		Deep Creek Lake State Park			Maryland	State park.
145	E		Morning Star Observatory			Pennsylvania	A private observatory somewhere around New Florence.
145	NE		Clarion University of Pennsylvania			Pennsylvania	University in Clarion.
145	NE		Eureka Observatory			Pennsylvania	A private observatory.
145	SW		Loveland			Ohio	A town in Hamilton county.
147	SW		Carter			Kentucky	Carter Caves State Park. A site used by the OVAS.
148	N		Chatham			Ontario
148	NE		Old LeBoeuf Cemetery			Pennsylvania	A site of the Erie County Mobile Observers Group. Near Mill Village.
148	NW		Defiance			Ohio
148	SW		Batavia			Ohio	Home of Clermont College. In Clermont County.
148	W		Tranquility Observatory			Ohio	A private observatory near West Manchester.
149	N		Green Ridge Observatory			Ontario	A private observatory near Ridgetown.
149	SE		Blackwater Falls			West Virginia	A state park and site of a star party held by the Kanawha Valley Astronomical Society.
150	N		Windsor			Ontario	Home of the RASC Windsor Centre.
150	SW		Cincinnati Nature Center			Ohio	Centered on the field of the Abner Hollow Pioneer Cabin in the Nature Center.
150	SW		West Chester			Ohio	A town in Butler county.
151	SW		KimbleLabs Observatory			Ohio	A private observatory near West Chester Township.
153	NE		Mitchell Observatory			Pennsylvania	A private observatory.
153	NW		Hector J. Robinson Observatory			Michigan	AKA the Lincoln Park Observatory. Observatory of the Lincoln Park School System. Near Lincoln Park High School.
155	NW		Detroit			Michigan	Home of the Dassault Systèmes Planetarium at the Detroit Science Center.
155	S		Joseph Dale Perry Memorial Observatory			West Virginia	A private observatory near Fort Gay.
156	SW		Grayson Lake State Park			Kentucky	Center on the Bruin Boat Ramp parking Lot, this chart covers all Grayson Lake State Park.
156	W		Hamilton			Ohio	A town in Butler county.
157	E		Heilwood			Pennsylvania
157	NE		Cooksburg			Pennsylvania	Forecast also covers Cook Forest State Park.
157	SW		Cincinnati Observatory Center			Ohio	A public observatory in Cincinnati.
157	SW		Marra's Frustration Center			Ohio	A private observatory near Forest Park.
158	NE		Erie			Pennsylvania	Home of the Mehalso Observatory of Penn State Erie.
158	NW		UM-Dearborn Observatory			Michigan	Observatory of the Dearborn Campus of the University of Michigan.
159	E		Punxsutawney			Pennsylvania
159	N		Rodney			Ontario
161	E		Elton Moonshine Observatory			Pennsylvania	An observatory in Elton.
161	E		Frostburg			Maryland	"Home of the the Cumberland Astronomy Club and Frostburg State University\'s planetarium.
161	SW		Blackhole Observatory			Kentucky	A private observatory in Mason.
162	NW		Al Meyers Airport			Michigan	Airport just outside of Tecumseh.
162	W		Oxford			Ohio
163	N		St. Clair Shores			Michigan
163	W		Richmond			Indiana
164	NW		Applewood Absurditory			Michigan	A private observatory, at least in spirit, near Ypsilanti.
164	NW		Livonia			Michigan
164	NW		Ypsilanti			Michigan
164	SW		A. J. Jolly Park			Kentucky	Park in Campbell County.
165	N		Big Bend Observatory			Ontario	A private observatory of a member of the RASC London Centre.
165	NW		Lake Hudson State Recreational Area			Michigan	Dark-sky preserve near Hudson. Used for star parties by the Amateur Astronomers of Jackson.
165	SE		Spruce Knob Mountain Center			West Virginia	A site used by the OVAS and home to NOVAC's Almost Heaven Star Party. West Virginia's highest peak.
165	SW		Cincinnati			Ohio	Home of the Cincinnati Astronomical Society.
165	W		Berne			Indiana	A town in Adams county.
166	N		Lake St. Clair Metropark Observatory			Michigan	Future site of an observatory of Wayne State University located at Lake St. Clair Metropark.
166	SW		CAS Starfield Observatory Dark Site			Kentucky	A private observing site of the Cincinnati Astronomical Society.
167	NE		Hearts Content Scenic Area			Pennsylvania	A site used by the Southern Tier Astronomy Recreation Society(S.T.A.R.S).
167	SE		Green Bank Observatory			West Virginia	Radio Observatory and for research and education. Also the home of the Green Bank Star Quest.
167	SW		Morehead State University			Kentucky	University in Morehead.
168	NW		Plymouth Digital Observatory			Michigan	A private observatory in Plymouth.
169	N		Fingal Wildlife Centre			Ontario	FWC is a site used by the London RASC
169	N		Oakdale			Ontario
169	NW		Ann Arbor			Michigan	Home of of the Detroit Observatory and the Angel Hall Observatory. Both are observatories of the University of Michican.
170	SE		Cave Mountain Observatory Retreat			West Virginia	Aka CMOR. A private observing club.
170	SW		Lincoln Ridge Park			Kentucky	Park in Kenton county. Formerly known as Banklick Woods Park. Site of Star Gazes (public star parties) with the Midwestern Astronomers.
171	SE		Kile Knob Observatory			West Virginia	A private observatory near Circlville.
172	SE		Droop Mountain Battlefield State Park			West Virginia	A state park near Hillsboro.
172	SE		Twin Sugars Observatory			West Virginia	A private observatory of a member of the Greenbrier Valley Astronomy Association. Near Friars Hill.
172	SW		Family Astronomers Of Kentucky			Kentucky	A private observatory near Carlisle.
173	N		Port Burwell Provincial Park			Ontario	Provincial park.
173	N		Visual Reconstructions Observatory			Michigan	A private observatory in Sterling Heights.
173	NW		Novi Community Sports Park			Michigan	A park west of Northville. Used by some members of the Ford Amateur Astronomy Club.
173	SW		Adams Observing Site			Kentucky	A private observing site.
173	SW		Hebron			Kentucky
174	E		Hidden Bend Observatory			West Virginia	A private observatory near Romney.
174	E		Rocky Gap State Park			Maryland	State park near Cumberland.
174	S		Backus Mountain Observatory			West Virginia	A private observatory.
175	N		Troy Space Gazebo			Michigan	A private observatory used by some members of the Oakland Astronomy Club. In Troy.
175	NW		Seven Sisters Observatory			Michigan	A private observatory near Manchester.
175	NW		Cranbrook Institute of Science			Michigan	Museum of natural history with public observing. In Bloomfield Hills.
175	SE		Watoga State Park			West Virginia	State park applying for dark-sky preserve status with the International Dark-Sky Association.
175	SW		England/Idlewild Park			Kentucky	Park in Burlington, KY. Site of public star parties held by volunteers from the Cincinnati Observatory Center (COC).
176	E		Prince Gallitzin State Park			Pennsylvania	State park on Glendale Lake.
176	E		Rainsburg Mountain			Pennsylvania
176	N		Springwater Conservation Area			Ontario	link
176	NE		Long Point Provincial Park			Ontario	Provincial Park on lake Erie.
176	SW		AIG public observatory			Kentucky
177	N		New Haven			Michigan	In Macomb county.
177	N		St. Thomas			Ontario
177	NW		Pioneer Scout Reservation			Ohio	A scout camp used as a star party site by the Toledo Astronomical Association.
177	W		Bushels and Baskets Observatory			Indiana	A private observatory.
178	N		Rochester Hills			Michigan
178	NE		Warren			Pennsylvania	Home of the Warren County Amateur Astronomy Club.
178	NW		My-Spot Observatory			Michigan	A private observatory near West Bloomfield.
180	N		Washington(MI)			Michigan	A town in Macomb county.

Copyright © 2024 Attilla Danko.

On server1