Clear Sky Chart

Charts within 300Km of the Port Perry clear sky chart

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0 Port Perry
 
Ontario  
1SE Port Perry Astronomical Observatory
 
Ontario   link
12S Ashburn Astronomical Observatory
 
Ontario   In Ashburn.
17E Long Sault Conservation Area
 
Ontario   A site used by the RASC Toronto centre. North of Bowmanville.
18S Camp Samac
 
Ontario   A scout camp near Oshawa.
22S CAMSAT Observatory
 
Ontario   A private observatory near Oshawa.
22W Goodwood
 
Ontario   Near Uxbridge.
23S Whitby
 
Ontario  
23SW Churchill Chimes Equestrian Center
 
Ontario   Riding school near the Goodwood Conservation Area.
24S Oshawa
 
Ontario  
29S Ajax
 
Ontario  
30W Mount Albert Lion's Club
 
Ontario   Near Mount Albert.
31SE Baetsen Observatory
 
Ontario   A private observatory near Orono.
32S Pickering
 
Ontario  
33NE Kawartha Observatory
 
Ontario   A private observatory in Lindsay.
33W Woodland Trails
 
Ontario   A scout camp near Aurora.
34E DRAACO
 
Ontario   Durham Region Astronomical Association Centre for Observing. Home of the DRAA.
34S Bay Ridges Observatory
 
Ontario   A private obseratory in Pickering.
35SW Salvador Observatory
 
Ontario   A private observatory somewhere around Pickering.
36E Millbrook
 
Ontario  
36SE Newcastle Observatory
 
Ontario   A private observatory in Newcastle.
41W Newmarket
 
Ontario   Home of the York Simcoe Amateur Astronomers Club.
42SW Markham
 
Ontario  
43W Island Grove Observatory.
 
Ontario   Near Keswick on southernmost Lake Simcoe.
44SW Scarborough
 
Ontario   A home of the University of Toronto Scarborough..
47NW Gambridge Go-Karts
 
Ontario   A go cart track near Gambebridge Beach.
47SW David Dunlap Observatory
 
Ontario   Historic Observatory in Richmond Hill.
47SW Richmond Hill
 
Ontario  
49SW Betelgeuse Bar & Grill
 
Ontario   P.Mortfield's private observatory.
50N Fenelon Falls
 
Ontario  
51SW KW Observatory
 
Ontario   A private obsrevatory near Thornhill.
53NW Innisfil
 
Ontario   A town in Simcoe County.
54NW Bartole Observing Platform
 
Ontario   A private observatory somewhere around Cook's Bay.
54NW Lagoon City
 
Ontario  
54SW Vaughan
 
Ontario  
55NE Peterborough
 
Ontario   Home of the Peterborough Astronomical Association
55W Churchill
 
Ontario   A town south of Barrie.
58SW York University Observatory
 
Ontario   AKA Allan I. Carswell Observatory. Observatory, of York University, with public observing.
60SW Toronto
 
Ontario   Home of the Toronto RASC, University of Toronto Atmospheric Observatory (TAO) and the Ontario Science Center.
63W B. Williams Mem. Observatory
 
Ontario   A private observatory near New Tecumseth.
64E Cobourg
 
Ontario  
64SW Kendrick Astro Observatory
 
Ontario   A private observatory in Toronto.
64SW Toronto Islands
 
Ontario  
64SW Woodbridge
 
Ontario  
64W Cold Creek Conservation Area
 
Ontario   Conservation area used as an observing site by the York Simcoe Amateur Astronomers Club.
66W Og's Bog
 
Ontario   A site of the North York Astronomical Association near Schomberg.
67NW Barrie
 
Ontario  
68NW Orillia
 
Ontario   Home of the Orillia Stars astronomy club.
68W Bolton
 
Ontario  
69SW Lloyd Manor Park
 
Ontario   A park in Etobicoke (west Toronto), used by the the 433rd Toronto Scouts..
71SW Fred's Backyard Observatory
 
Ontario   A private observatory in Etobicoke.
72W Camp Saulaine
 
Ontario   Between Angus and Barrie.
72W R2 Observatory
 
Ontario   Private observing site of the Phd Astro group.
74SW Brampton BrightSkies Observatory
 
Ontario   A private observatory in Brampton.
74W Alliston
 
Ontario  
75NE Camp Kawartha
 
Ontario   A non-profit camp for kids and adults.
75W Palgrave Conservation Area
 
Ontario   Site of the EfstonScience Cosmic Connections Observing Sessions. 10km north of Bolton.
76E WhistleStop Observatory
 
Ontario   A private observatory.
77E Lorenz Observatory
 
Ontario   A site of the North York Astronomical Association near Cobourg.
77E Sandy Flats Observatory
 
Ontario   A private observatory near Roseneath.
77W Earl Rowe Provincial Park
 
Ontario   Provincial Park near New Tecumseth. Site of star parties held by the University of Toronto Physics Club (UTMPC) and the U of T Amateur Astronomer's Society (UTAAS).
79SW Mississauga
 
Ontario   Home of the RASC Mississauga Centre. Forecast also covers the Riverwood Star Party held by the RASC Mississauga Centre.
80SW Brampton
 
Ontario  
80W Caledon
 
Ontario  
80W Willowbrook Observatory
 
Ontario   Near Alliston
81N Highlands Wilderness Observatory
 
Ontario   An observatory in Minden Hills.
84NE Buckhorn Observatory
 
Ontario   An observatory near Buckhorn.
84W ROBOsky.com Wild Flower Ridge Observatory
 
Ontario   An internet-accessible robotic-observatory farm, by ROBOsky.com, located in the Hockley Highlands near Orangeville.
86NW Foxmead Observatory
 
Ontario   A private observatory near Coldwater.
87W Pine River Observatory
 
Ontario   A private observatory.
91W Forks of the Credit
 
Ontario   A provincial park used by the Toronto RASC as a dark-sky site.
92NE Anstruther Lake Observatory
 
Ontario   A private Observatory.
93SW Minakakis Observatory
 
Ontario   A private observatory near Halton Hills.
93SW Oakville
 
Ontario  
94E Campbellford
 
Ontario  
94E Lakehenge Observatory
 
Ontario   A private observatory.
94W Orangeville
 
Ontario  
95NW Black Skies Observatory
 
Ontario   A private observatory near Waubaushene.
96NW Tiny Marsh Provincial Wildlife Area
 
Ontario   Centered on the trailhead of Tiny Marsh Provincial Wildlife Area. Near Elmvale, in Tiny Township.
96S Niagara
 
Ontario   Also known as Niagara-on-the-Lake. Home of the RASC Niagara Centre.
97N Gravenhurst
 
Ontario  
99NE Apsley
 
Ontario  
99NE Mount Mould Observatory
 
Ontario   A private observatory near Gooderham. Also known as MMO.
99S Eyeline Observatory
 
New York   A private observatory in Ransomville.
100NE Oak Lake Observatory
 
Ontario   A private observatory.
100SW Halton Hills
 
Ontario  
100SW Milton
 
Ontario  
100W Shelburne
 
Ontario  
101N Clearing off Thompson Road
 
Ontario   A clearing off Thompson road off of HYW 118. Private property. Use with permission.
101W Grey Highland Skies Observatory
 
Ontario   A private observatory near Dundalk.
103NW Torrance Barrens Dark-Sky Preserve
 
Ontario   A Dark-Sky Preserve. Near Gravenhurst and Lake Muskoka.
103SE Marshall Hill Observatory
 
New York   A private observatory in Medina.
104NW UpUp Observatory
 
Ontario   A private observatory on Hiraeth Island, Lost Channel near Severn Falls.
104NW Midland
 
Ontario  
105E Heartwood Observatory
 
Ontario   A private observatory.
106SW Blue Springs Camp
 
Ontario   A scout camp near Acton.
107N Bracebridge
 
Ontario  
107S Firemen's Park
 
Ontario   Used by the RASC Niagara Centre for monthly public observing nights.
107SW Mount Nemo Observatory
 
Ontario   A private observatory.
108E FvH Observatory
 
Ontario   A private observatory in Trenton.
108E Mason Bald Observatory
 
Ontario   A private observatory in Frankford.
108S St Catharines
 
Ontario  
109E Quinte West
 
Ontario  
109E Trenton
 
Ontario  
109NE Marmora
 
Ontario  
110N Haliburton County
 
Ontario  
110NW Collingwood
 
Ontario  
111E Stirling-Rawdon
 
Ontario  
111SW Burlington
 
Ontario  
112S Beamsville
 
Ontario  
112S Vineland
 
Ontario  
112SW GEM 'N I Dobservatory
 
Ontario   A private observatory in Grimsby.
112SW Hamilton Centre Observatory
 
Ontario   Near Waterdown. Observatory of the Hamilton RASC
113S DaVinci Observatory
 
New York   A private observatory near Lockport.
113S Niagara Falls
 
New York  
113S Niagara Falls
 
Ontario  
113S Tobey Memorial Observatory
 
New York   A private observatory.
114NE Silent Lake
 
Ontario   Provincial Park
114SE Hamlin Beach State Park
 
New York   State Park on the south shore of Lake Ontario.
114SW Weather and Sky Observatory
 
Ontario   A private observatory near Grimbsby.
114W Colbeck Observatory
 
Ontario   A private observatory near Colbeck.
115S Elliott-Astronomy Observatory
 
New York   A public observatory.
115W Dundalk
 
Ontario  
116S Lincoln
 
Ontario  
118NW Taigh nan Reul
 
Ontario   Scottish Gaelec for "House of Stars". A private observatory.
119SW Hamilton
 
Ontario   Home of the HAA and the RASC Hamilton Centre.
120NE Haliburton Scout Reserve
 
Ontario   A large scout camp centered around Lake Kennabi.
120SW Brundish Observatory
 
Ontario   A private observatory near Guelph.
121NE Loon Call Observatory
 
Ontario   A private observatory near Coe Hill.
122SW Guelph
 
Ontario   Home of the University of Guelph Astronomy Club (possibly out of date).
122W Carr Astronomical Observatory
 
Ontario   Observatory of the Toronto RASC. Near Collingwood
123E Ivanhoe Observatory
 
Ontario   A private observatory near Ivanhoe.
123NW Port Carling
 
Ontario  
123W Fergus
 
Ontario  
125E Belleville
 
Ontario   Home of the RASC Belleville Centre
125N Lake of Bays
 
Ontario  
125N Muskoka District Municipality
 
Ontario  
125SW Astrodoc's Doghouse Observatory
 
Ontario   A private observatory near Guelph.
126S Welland
 
Ontario  
127SE Brockport State Observatory
 
New York   An observatory on the campus of SUNY Brockport.
128N Haliburton Forest Observatory
 
Ontario   An in a privately owned forest.
129NE Old Hastings Observatory
 
Ontario   A private observatory.
129NW Chimnissing
 
Ontario   Centered on the West Beach of Chimnissing. On Christian Island in Georgian Bay.
129SE Dark Arts Observatory
 
New York   A private observatory.
129SW VSO
 
Ontario   AKA Very Small Obsrevatory. A private observatory near Ancaster.
129W Sideroad 10D
 
Ontario   A spot on Sideroad 10D, in Grey county.
131S Niagara Centre Observatory
 
Ontario   An observatory of the RASC Niagara Centre. Located at the Chippawa Creek Conservation Area.
131W Beaver River Observatory
 
Ontario   A private obsrevatory somewhere in the Grey Highlands.
133SW HAA Dark Sky Site
 
Ontario   Not a public Site. An observing site of the Hamilton Amateur Astronomers (HAA) for members' use.
134E West Lake
 
Ontario   Forecast also covers Sandbanks Provincial Park.
134NW Lora Bay
 
Ontario  
134NW Pine Islands
 
Ontario   In Georgian Bay half way between Parry Sound and Honey Harbour.
134S Fort Erie
 
Ontario  
134S Fort Erie Observatory
 
Ontario   A private observatory near Fort Erie.
134S Kellogg Observatory
 
New York   Observatory of the Buffalo Museum of Science in Buffalo.
134S Observatory on the Ridge
 
Ontario   A private observatory near Ridgeway.
136NE Bancroft
 
Ontario  
136S Blue Braille Observatory
 
Ontario   A private observatory.
136S Buffalo
 
New York   Home of the Buffalo Astronomical Association.
136SW Cambridge
 
Ontario  
138N Huntsville
 
Ontario  
138S Port Colborne
 
Ontario  
139W The Glenelg Observatory
 
Ontario   A private observatory near Durham.
140N Oxtongue Lake
 
Ontario  
142NW Delta Rocky Crest Resort
 
Ontario   A resort near Mactier.
142SW The Blue Marble Observatory
 
Ontario   A private observatory.
143SW Kitchener-Waterloo
 
Ontario   Home of the RASC Kitchener-Waterloo Centre.
144W Mount Forest
 
Ontario  
145E Picton
 
Ontario  
146E Oak Hills
 
Ontario   A private observing site in Popow Ranch
148E Point Petre
 
Ontario   A spot at the end of end of Simpson Road used by some RASC Kingston members for Mars observing.
148SW Cayuga
 
Ontario  
150SE Rochester
 
New York   Home of the RIT Observatory, the R.I.T. Astronomy Club and the The Astronomy Section of the Rochester Academy of Science (ASRAS).
150W Conestogo Lake
 
Ontario   Used by the RASC Kiitchener-Waterloo Centre.
150W Durham
 
Ontario  
151SW Haldimand
 
Ontario  
151W Starfest
 
Ontario   A starparty held near Mount Forest.
152S Armour Observatory
 
New York   A private observatory.
152SW Brantford
 
Ontario  
152SW CMiller Observatory
 
Ontario   Near Brantford.
153NE Lake St. Peter Provincial Park
 
Ontario   Provincial Park near Bancroft.
153SE Webster Park
 
New York   A park in Monroe County, NY.
154E Lennox and Addington Dark Sky Viewing Area
 
Ontario   A public and official dark-sky observing site of Lennox and Addington county.
154W Dornoch
 
Ontario  
155E Fall 'N' Stars
 
Ontario   A star party held by the Belleville and Kingston RASC centres at Johnson's R.V. PARK.
156SE Middlebury Observatory
 
New York   A private observatory.
156SW Hackbart Road Hill
 
Ontario   Also called Cross Hill. A spot on the side of Hackbart Road, 100 meters up from the radio tower. Used by some memebers of the RASC Kitchener-Waterloo Center. Near St. Clemens.
157NE Kaladar
 
Ontario  
158E Greater Napanee
 
Ontario  
160S Transit Dreams North
 
New York   A private observatory.
162S Kitters Angola Observatory
 
New York   A private observatory affiliated with the Buffalo Astronomical Association and South West Florida Astronomical Society.
163N Rock Lake
 
Ontario   A campground in Algonquin Provincial Park.
163NW Parry Sound
 
Ontario  
163S Orbit Jet Observatory
 
New York   An observatory near Colden.
163SW New Hamburg Observatory
 
Ontario   A private observatory.
163SW Spring Hill School Observatory
 
Ontario   A private observatory at the site of a former school. Near Drumbo Blandford-Blenheim.
164W North Perth
 
Ontario  
165E Prinyer's Cove
 
Ontario   In Prince Edward County.
165N Four Corners Algonquin Observatory
 
Ontario  
165NE Marble Lake Observatory
 
Ontario   A private observatory near Cloyne.
165S Beaver Meadow Observatory
 
New York   Observatory of the Buffalo Astronomical Association. Near North Java.
167N Mew Lake Campground
 
Ontario   A campground in Algonquin Provincial Park.Home to the Algonquin Adventure, a star party of the RASC Toronto Centre.
167W Owen Sound
 
Ontario   Home of the Bluewater Astronomical Society.
168NE Nirvana
 
Ontario   Where OAFs go when they have earned enough observing karma. AKA Irvine Lake Airstrip. Near Bon Echo Provincial Park. Note: no cell phone service.
170N Sandy Cove
 
Ontario   At the north-east end of Three Mile Lake. Near Burk Falls.
171E Camden Lake
 
Ontario   A public wildlife area used by the Kingston RASC.
172E Arden
 
Ontario  
172N Burk's Falls
 
Ontario  
172NE Four Corners Madawaska Observatory
 
Ontario  
173N McCauley Lake Observatory
 
Ontario   A private observatory.
174SW CMOR
 
Ontario   The Canadian Meteor Orbit Radar. A meteor research station of the University of Western Ontario. Near Tavistock.
175SE The Marian and Max Farash Center for Observational Astronomy
 
New York   Home of the Farash Observatory and the Wolk Observatory Rochester Academy of Science. Near Ionia.
176E Starlight Cascade Observatory
 
Ontario   A private observatory near Yarker.
176NW Keppel Henge
 
Ontario   A solar-system observatory with unusually robust instruments. Located at Keppel Croft Gardens, near the shore of Georgean Bay between Wiarton and Owen Sound.
176W Walkerton
 
Ontario  
177W Monkton Observing Site
 
Ontario   A spot an the end of Line 58 near the town of Monkton. Used as an observing spot by the RASC Kitchener-Waterloo Centre.
178SW Port Dover
 
Ontario  
179SW Simcoe
 
Ontario   Home of the North Shore Erie Amateur Astronomers.
181SW Woodstock
 
Ontario  
183NE Barry's Bay
 
Ontario  
183NE North Frontenac Dark Sky Preserve
 
Ontario   Public observing site with concrete pad for telescopes, power, outhouses and parking. Part of the 1000+ acre North Frontenac Dark Sky Preserve.
183SW Stratford
 
Ontario   Home of the Stratford Astronomy Group.
184NE Split Rock Observatory
 
Ontario   A private observatory near Ardoch.
184W Allenford Observatory
 
Ontario   A private observatory near Allenford.
186N Dunchurch
 
Ontario  
187S Fredonia Observatory
 
New York   Observatory of Fredonia State University of New York.
187SW Delhi (ON)
 
Ontario  
188NE Quadeville Road
 
Ontario   A spot along Quadeville road near Wolfe.
188NW Wiarton
 
Ontario  
188SW Norfolk County
 
Ontario  
189SW Embro Observatory
 
Ontario   A private observatory near Embro.
190E Sydenham
 
Ontario  
190S Lime Lake
 
New York   A lake near Machias.
191E The Observatory on the Lake
 
Ontario   link
191SE Timerson Observatory
 
New York   A private observatory near Newark.
191W Wingham
 
Ontario  
192W South Bruce Peninsula
 
Ontario  
194NE Sharbot Lake
 
Ontario  
194SW Long Point Observatory
 
Ontario   A commercial observatory, open to the public. Near Port Dover.
194W Hiddenwell Observatory
 
Ontario  
195E Otter Lake Scout Camp
 
Ontario   A scout camp on Otter lake.
195SE Lyons
 
New York  
195W ES Fox Observatory (BAS/BOEC)
 
Ontario   Observatory of the Bluewater Astronomical Society located at the Bluewater Outdoor Education Centre of the Bluewater District School Board. The BOEC is a dark-sky preserve.
196NE Foymount
 
Ontario   A site used by the OAOG.
196NE Teeples Hill
 
Ontario   Private property on Teeple Haley Road. Permission required.
196SW Pictor Observatory
 
Ontario   A private observatory near Ingersoll.
197E Kingston
 
Ontario   Home of the RASC Kingston Centre and The Queen's Observatory of Queen's University.
198N Nelsons Bay Observatory
 
Ontario   A private observatory on Deer Lake near South River.
198W Port Elgin
 
Ontario   Home of the Bluewater Astronomical Society (formerly the Bruce County Astronomical Society).
199NW Pte. au Baril
 
Ontario   On Georgian Bay.
199S Starry Knoll
 
New York   A private observing site. A few miles from Houghton.
199SE C.E.K. Mees Observatory
 
New York   Observatory of the University of Rochester. Near Hornell.
199SW Tillsonburg
 
Ontario   Aka Tilsonburg.
200SE Fair Haven
 
New York   A town in Cayuga county.
204NE Bonnechere Provincial Park
 
Ontario   Provincial park on Round lake. (Note: Nearby Bonnechere airstrip is nolonger accessable for observing.)
204SE Ossian Observatory
 
New York   A private ovservatory in Ossian.
204W SkyShed Observatories
 
Ontario   A manufacturer of observatories
205S Ellicottville Observatory
 
New York   A private observatory near Ellicottville.
207E Battersea Observatory
 
Ontario   A private observatory in Battersea.
207NW Quetican Observatory
 
Ontario   Near Lion's Head.
207SW Long Point Provincial Park
 
Ontario   Provincial Park on lake Erie.
208NE Cygnus Hill Observatory
 
Ontario   A private observatory near Maberly.
208NE Chickadee Ridge Observatory
 
Ontario   A private observatory.
208NW Lion's Head Dark Sky Viewing Platform
 
Ontario   A deck at Lion's head Marina in the town of Lion's Head. Site of public astronomy events.
208SE The Smith Observatory
 
New York   Historic observatory in Geneva.
209NE Kennelly's Mountain
 
Ontario   Near Calabogie.
210E Camp Opemikon
 
Ontario   Centered on the overflow parking lot, accross the road from Scout Camp Opemikon. The parking lot is used as casual observing site from some observers from Ottawa as it doesn't require entry to the camp.
210NW Ponte di Legno Observatory
 
Ontario   A private observatory somewhere around Ferndale.
211NE K&P at Clyde Forks
 
Ontario   A spot along Clyde Forks road where it ends at the K&P trail.
211SE Richard S. Perkin Observatory
 
New York   A private observatory of Hobart and William Smith Colleges.
212E Westport
 
Ontario  
215W Kincardine
 
Ontario  
216NE Black Creek Pond
 
Ontario   A small pond along Black Creek road in Lanark County.
217N Algonquin Radio Observatory
 
Ontario   Radio Observatory located in Algonquin Provincial Park.
217NE Achray Campground
 
Ontario   Campground in the northeast part of Algonquin Park.
218SE Los Gatos B&B
 
New York   Bed and Breakfast with star parties. In Penn Yan.
219N Munro Park
 
Ontario   A campground near Powassan. Home of the Frozen Banana Star Party.
219S Long Point on Lake Chautauqua
 
New York   A state park on Chautauqua Lake. Used by the Southern Tier Astronomy Recreation Society (STARS) .
220NW Blue Heron Observatory
 
Ontario   A private observatory in Greenough Harbour, outside of Stokes Bay Ontario, on the Northern Bruce Peninsula.
221SE Finger Lakes Regional Airport
 
New York   Also covers the north-central portion of the Finger Lakes area.
221SE Highwinds Observatory
 
New York   A private observatory in Geneseo.
221SW Elginfield Observatory
 
Ontario   Observatory of the University of Western Ontario(UWO).
222E Black Lake Observatory
 
Ontario   A private observatory between Perth and Westport.
222SW Port Burwell Provincial Park
 
Ontario   Provincial park.
223E Gananoque
 
Ontario  
223W Camp Kintail
 
Ontario   A public camp used by the RASC Kitchener Centre.
224NW Miller Lake
 
Ontario   Forecast covers Summer House Park and Miller's Family Camp both sites of star parties held by the Bayside Astronomy Program
224SW Hume Cronyn Observatory
 
Ontario   A observatory run by the Department of Physics and Astronomy of the University of Western Ontario.
224SW London
 
Ontario   Home of the RASC London Centre.
224SW Purple Crow Lidar Facility
 
Ontario   Laser radar located at the Environmental Sciences Western Field Station of Western University.
224W Point Clark
 
Ontario  
225NW WBI/Britt
 
Ontario   A radar station. And site of informal star parties.
225S Jamestown
 
New York  
225W Goderich
 
Ontario  
226E Whippoorwill Hill Observatory
 
Ontario   A private observatory.
226NE Sunset Bay
 
Ontario   A private observatory on the SW end of White Lake, occaisonally used by some members of OAFs.
226NE Tatlock Quarry Outlook
 
Ontario   Outlook over a working quarry. Access is by private road with 'use at your own risk' signage. Gate is closed in the winter.
226NW Cabot Head
 
Ontario   Chart is centered on the site of the Bruce Peninsula Star Party, aka StarFeast, but also covers the Cabot Head Provincial Nature Reserve Park and Bruce Peninsula National Park which is a dark sky preserve. In the Bruce penninsula.
226SE Stull Observatory
 
New York   Observatory at Alfred University. In Alfred.
226SW Springwater Conservation Area
 
Ontario   link
227N Restoule Provincial Park
 
Ontario   Provincial park and home of the Gateway to the Universe star party held by the North Bay Astronomy Club.
227NW Four Elements Observatory
 
Ontario   A private observatory.
229S M & T Observatory
 
New York   A private observatory near Olean.
229W Bayfield
 
Ontario   Centered on the field of the Bayfield Agricultural Society Grounds which is site of public star parties held by the West Coast Astronomers.
231NE Perth
 
Ontario  
231NE Pit Road
 
Ontario   A spot along Pit road (aka Mcguinty Rd) used by some Ottawa area observers. Near Osceola.
232E Dexter
 
New York  
233S Martz-Kohl Observatory
 
New York   Near Jamestown. Observatory of the Martz Astronomical Association
233SW St. Thomas
 
Ontario  
234NE Renfrew
 
Ontario  
235NW Johnston's Harbour
 
Ontario  
236E Charleston Lake
 
Ontario   Provincial Park
236S Lone Pine Observatory
 
New York   A private observatory
236SW Weymouth Pines Observatory
 
Ontario   A private observatory near Middlesex Centre.
237E Rideau Ferry Observatory
 
Ontario   A private observatory near Rideau Ferry.
237SW G-2 Farms Observatory
 
Ontario   A private observatory.
238NE Petawawa
 
Ontario  
238SW Erie
 
Pennsylvania   Home of the Mehalso Observatory of Penn State Erie.
239NE Coyote Observatory
 
Ontario   A private observatory near White Lake.
239NE Pembroke
 
Ontario  
239NE Petawawa Terrace Provincial Nature Reserve
 
Ontario   A nature preserve near Petawawa.
241NE Bootland Farm
 
Ontario   A site use by the OAOG
241NE Apple Orchard Observatory
 
Ontario   A private observing site
241NW Dorcas Bay
 
Ontario   Location of the Singing Sands portion of Bruce Penninsula National Park. Also site of public astronomy events
243E Watertown
 
New York   A town in Jefferson county.
244E Hillier Observatory
 
Ontario   A private observatory.
244N Canadian Ecology Centre Observatory
 
Ontario   Observatory of the Canadian Ecology Centre. In Samuel de Champlain Provincial Park
244NE Zion Camp
 
Ontario   A site used by the OAOG. In Forester's Falls, about 10km from Cobden.
245E Poole's Resort Observatory
 
Ontario   Site of future private observatory. Named after Pool's Resort Road. Near Mallorytown.
245SE Baltimore Woods Nature Center
 
New York   Nature Center and site of star parties.
246SE Liverpool
 
New York  
246SW Mitchell Observatory
 
Pennsylvania   A private observatory.
247N Driftwood Provincial Park
 
Ontario   Provincial Park near Stonecliff, west of Deep River.
247N Mattawa
 
Ontario  
247NE Fred Lossing Observatory
 
Ontario   Ottawa RASC's observatory near Almonte. Located on a back lot of the Mill of Kintail which is also the site of star parties held by the Ottawa Astronomy Friends.
248E Smiths Falls
 
Ontario  
248N North Bay
 
Ontario   Home of the North Bay Astronomy Club.
249NE Deep River
 
Ontario   Home of the Deep River Astronomy Club.
249NE Lookout Point
 
Ontario   A lookout on Lookout Road, in Westmeath.
249SW Fingal Wildlife Centre
 
Ontario   FWC is a site used by the London RASC
250NW Tobermory
 
Ontario  
251SW Strathroy
 
Ontario  
252NE Beckwith Park
 
Ontario   Park in Black's Corners near Carleton Place. A site used by the OAOG.
252S Warren
 
Pennsylvania   Home of the Warren County Amateur Astronomy Club.
253E Millsite Lake
 
New York   Near the Indian River State Wildlife Preserve and the town of Alexandria Bay.
254SE Syracuse
 
New York   Home of the Syracuse Astronomy Society.
255W Lambton Shores
 
Ontario  
256W Port Franks
 
Ontario  
259SW Eureka Observatory
 
Pennsylvania   A private observatory.
260SW Evergreen Observatory
 
Pennsylvania   A private observatory in Girard Township.
261S Port Allegany
 
Pennsylvania  
262S Hebron Observatory
 
Pennsylvania   A private observatory somewhere around Hebron.
262S Kinzua Bridge State Park Visitor's Center
 
Pennsylvania   Visitor Center of a state park. Near Mt Jewett.
262S Old LeBoeuf Cemetery
 
Pennsylvania   A site of the Erie County Mobile Observers Group. Near Mill Village.
263E Merrickville
 
Ontario   Home of some members of the OAOG.
263NW Chi'Cheemaun 1/3rd Point
 
Ontario   A spot in Georgian bay approixmately 1/3 of the way from Tobermory to Baymouth along the Chi'Cheemaun ferry's route. The Chi'Cheemaun ferry is host to public astronomy sessions while under way across Georgian Bay.
264S Gold
 
Pennsylvania  
265E Brockville
 
Ontario  
265E Mount Olson Observatory
 
Ontario   A private observatory in North Augusta.
265NE Quyon
 
Quebec  
266NE TamyMartOffgrid
 
Quebec   A private observing site.
266SE Darling Hill Observatory
 
New York   Obsevatory of the Syracuse Astronomical Society. Near Tully.
267S Edinboro University Planetarium and Observatory.
 
Pennsylvania   Observatory and planetarium of Edinboro University.
268NE Carp Library / Diefenbunker
 
Ontario   Library and cold-war museum used for public star parties by the Ottawa RASC.
270S Hearts Content Scenic Area
 
Pennsylvania   A site used by the Southern Tier Astronomy Recreation Society(S.T.A.R.S).
271E Oxford Observatory
 
Ontario   A private observatory near Oxford Mills.
271NE Barred Owl Observatory
 
Ontario   A private observatory near Carp.
271NE Denholm Observatory
 
Ontario   A private observatory.
271SE Eileen Collins Observatory
 
New York   An Observatory of Corning Community College.
271SE Ithaca
 
New York   Home of the Cornell Astronomical Society. Also home of the Clinton B. Ford Observatory of Ithaca College. Forecast also covers the nearby Fuertes and Hartung-Boothroyd observatories of Cornell University.
272S GCC Observatory
 
Pennsylvania   Observatory of Grove City College
273SW Conneaut
 
Ohio   Also covers Ashtabula.
274NE Constance Bay
 
Ontario  
274NE Clarke Priscu Observatory.
 
Ontario   A private observatory.
275SE The Knob
 
New York   A private observatory.
276E Limerick Forest Pit
 
Ontario   A public parking lot located in Limerick Forest which is managed by the United Counties of Leeds and Grenville.
276NE Earwig Haven Observatory
 
Ontario   A private observatory in Kanata.
276SW Big Bend Observatory
 
Ontario   A private observatory of a member of the RASC London Centre.
277NE Kathik-B Observatory
 
Ontario   A private observatory in Kanata.
277NE Otter Lake
 
Quebec   A site used by the OAOG.
277NE Pontiac
 
Quebec  
278NW Chi'Cheemaun 2/3rds Point
 
Ontario   A spot in Georgian bay approixmately 2/3 of the way from Tobermory to Baymouth along the Chi'Cheemaun ferry's route. The Chi'Cheemaun ferry is host to public astronomy sessions while under way across Georgian Bay.
279E Lewis County Fairgrounds
 
New York   Fairgrounds near Lowville.
279NE Pinhey's Point
 
Ontario   A park.
280E Kemptville
 
Ontario  
280SW Rodney
 
Ontario  
281NE Arbeatha Park
 
Ontario   A neighborhood in West Ottawa.
281NW Burwash
 
Ontario   An observing site of the Greater Sudbury Amateur Astronomers.
282NE Luskville Falls
 
Quebec   The Luskville Falls entrance to Gatineau Park. Site of public star parties held by astropontiac.ca.
282S Higby Hill Observatory
 
Pennsylvania   A private observatory.
283NE Camp No'Chimik
 
Ontario   A private farm. South of Manotick.
284E Annual International Video Astronomy Star Party
 
Ontario   A star party in Johnstown.
284SE Virgil Observatory
 
New York   A private observatory.
285NE Inukshuk Observatory
 
Ontario   A private observatory in Ottawa.
285NE Baxter Conservation Area
 
Ontario   Conservation area with picnic area and beach. Adjacent to Rideau Valley Air Park.
285SW "Way The Held Out" Observatory
 
Pennsylvania   A private observatory near Conneautville.
286N Fisher's Paradise
 
Ontario   A campground used by some members of the North Bay Astronomy Club.
286NE Astroknip's Observatory
 
Quebec   A private observatory in Aylmer.
286NE Champlain Belvédère
 
Quebec   Belvédère Champlain du parc de la Gatineau. (AKA Champlain Lookout.) Site d'observation du groupe « Les astronomes du parc de la Gatineau ».
286NE Jock River Observatory
 
Ontario   A private observatory.
287NW Killarney Provincial Park Observatory
 
Ontario   Observatory at Killarney Provincial park.
287S Cherry Springs State Park
 
Pennsylvania   Near Coudersport. An state park with "short term stargazing" and is home of the Black Forest Star party and the Cherry Springs Star Party.
288E B & P Myers Observatory
 
New York   A private observatory near West Leyden.
288N Curiosity Observatory
 
Ontario   A private observatory.
289NE Lac Georges
 
Quebec  
289NW Killarney
 
Ontario  
289SE Angel Light Observatory
 
New York   A private observatory near DeRuyter.
290NE Chelsea
 
Quebec  
291NW South Baymouth
 
Ontario   On Manitoulin Island.
291S Meadville
 
Pennsylvania  
292NE Boreal Skies Observatory
 
Quebec   A private observatory.
292NE Wakefield
 
Quebec  
292S Pettis Rd Observatory
 
Pennsylvania   A private observatory.
293NE Observatoire de Gatineau
 
Quebec   L'horloge climatique de Observatoire de Gatineau (the home of The Gatineau Observatory.)
294E South Mountain
 
Ontario   A site used by the OAOG.
294E Seaway Observatory
 
Ontario   A private observatory in Cardinal.
295NE Ottawa
 
Ontario   Home of the Ottawa RASC, the Ottawa Valley Astronomy and Observers Group, and the Ottawa Astronomy FriendS.
295NW Manitoulin Eco Park
 
Ontario   A commercial park and dark sky preserve.
295SE Lead Parachute Observatory
 
Pennsylvania   A future private observatory near Wellsboro.
295SW Oakdale
 
Ontario  
296S Starshine Farm Observatory
 
Pennsylvania   A private observatory near Wayne.
297SE Mansfield
 
Pennsylvania   Home of Mansfield University.
298E Hewlett Observatory
 
New York   A private observatory near Canton.
298NE Gatineau
 
Quebec  
298W Delaware Park
 
Michigan   County park of Sanilac County.
299N Marten River Provincial Park
 
Ontario   Provincial park and star party site of the North Bay Astronomy Club.
300SE Marathon
 
New York  


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