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American Assn. of Variable Star Observers
American Association of Amateur Astronomers
American Astronomical Society
American Lunar Society
American Meteor Society, Ltd.
Antique Telescope Society
Association of Lunar and Planetary Observers
Astronomical League
Astronomical Society of the Pacific Foro Astronomía Observacional100
Astronomy Day Headquarters
International Association for Astronomical Studies
International Astronomical Union
International Dark-Sky Association11,000
International Meteor Organization250
International Occultation Timing Association
Night Skies Network9681
North American Meteor Network
Oregon Star Party1000


RTMC Astronomy Expo
Society of Amateur Radio Astronomers~700
Texas Star Party
The Royal Astronomical Society of Canada (RASC)
The SETI League, Inc.
Visual Satellite Observers (appears dormant)


AuburnAuburn Astronomical Society
FlorenceShoals Astronomy Club
HueytownBirmingham Astronomical Society79
HuntsvilleVon Braun Astronomical Society
MobileMobile Astronomical Society
Ozark!Ozark Astronomy Club
Tuscaloosa!The Astronomical Society of Tuscaloosa


FairbanksFairbanks Astronomy Unit
Yahoo GroupAlaskan Astronomy Group


ClarkdaleAstronomers of Verde Valley
Eagar-White Mountains Astronomy Club
FlagstaffCoconino Astronomical Society
Green ValleySonora Astronomical Society (SAS)180+
KingmanHigh Desert Astronomy Club
Lake Havasu CityLake Havasu Astronomy Club
Oro ValleySun City Astronomy Club
PhoenixEast Valley Astronomy Club
PhoenixPhoenix Astronomical Society60
PhoenixSaguaro Astronomy Club
PrescottPrescott Astronomy Club65
SedonaSirius Lookers of Sedona
Sierra VistaHuachuca Astronomy Club
Sun City WestAstronomy Club of Sun City West-
SurpriseWest Valley Astronomy Club
TucsonTucson Amateur Astronomy Assn.
TucsonUniversity of Arizona Astronomy Club
Yuma!Yuma Astronomy Club


Bella Vista!Sugar Creek Astronomical Society
DoverRiver Valley Stargazers
Fayetteville!Astronomical Society of Northwest Arkansas
Hot Springs VillageHot Springs Village Star Gazers
Little RockCentral Arkansas Astronomical Society
NashvilleRed River Astronomy CLub
Siloam SpringsChristian Association of Stellar Explorers
State University!Northeast Arkansas Sky Crew
Van BurenArkansas-Oklahoma Astronomical Society41


Apple ValleyHigh Desert Astronomical Society
AptosCabrillo Astronomy Club
Arcata!Arcata Society for Amateur Astronomers
BakersfieldKern Astronomical Society, Inc.
BerkeleyAstronomical Association of Northern California
Big Bear LakeBig Bear Valley Astronomical Society
BishopWhite Mountain Astronomers4
BlytheColorado River Astronomy Club23
BreaGolfing Astronomer Musician's Association
Chatsworth!Celestial Observers
ClaremontPomona Valley Amateur Astronomers 60
ConcordMount Diablo Astronomical Society
Costa MesaOrange County Astronomers 850+
Cypress!Western Observatory Astronomy Society
DavisAstronomy Club of the Univ. of California at Davis
EurekaAstronomers of Humboldt 25
FresnoCentral Valley Astronomers, Inc.60
Glen Ellen!Valley of the Moon Astronomical Society
HerculesHercules Stargazers
HollywoodThe Sidewalk Astronomers
Idyllwild!Idyll-Gazers Amateur Astronomy Club
Joshua TreeSouthern California Desert Video Astronomers open
KernvilleKern River Valley Astronomy Club
Lake ArrowheadMountain Skies Astronomical Society
Lakewood!Excelsior Telescope Club
LancasterAntelope Valley Astronomy Club
LivermoreTri-Valley Stargazers
Lockwood ValleyPolaris Observatory Association15
Long Beach!Long Beach Astronomical Socity
Los Altos HillsPeninsula Astronomical Society
Los Angeles!The Astronomy Forum15
Los AngelesClear Nights 15
Los AngelesLos Angeles Astronomical Society
Los GatosThe Astronomy Connection
Manteca!Manteca Observer's Group
Marina!MIRA Observers Group
MercedM-STAR Astronomy Club25
Mill Valley!Marin Stargazers
Modesto-Stanislaus Amateur Astronomers
ModestoGreat Valley Astronomy Club
Moorpark!Polaris Astronomical Society 50
Moutain GateThe George H. Lutz Observatory (Astronomy Club)32
OaklandChabot Telescope Makers Workshop
OaklandEastbay Astronomical Society
Oceanside (San Diego)Oceanside Photo & Telescope Astronomical Society160
Palm Desert!Sun City Palm Desert Astronomy Club
Palm DesertAstronomical Society of the Desert
PalmdaleAntelope Valley Astronomy Club, Inc
PasadenaMount Wilson Observatory Assn.
Rancho CaliforniaTemecula Valley Astronomers
ReddingShasta Astronomy Club
RidgecrestChina Lake Astronomical Society
RiversideRiverside Astronomical Society285
SacramentoSacramento Valley Astronomical Society
SacramentoSidewalk Astronomers of Sacramento
San BernardinoSan Bernardino Valley Amateur Astronomers
San Diego!Schwartz Astronomical Society3
San DiegoSan Diego Astronomy Association600
San Diego (Ocean Beach)!Not When the Surf's Up Amateur Astronomers Group
San FranciscoSan Francisco Amateur Astronomers
San FranciscoSan Francisco Sidewalk Astronomers
San JoseHalls Valley Astronomical Group25
San JoseSan Jose Astronomical Association
San Juan BautistaFremont Peak Observatory Association175
San LeandroGroup 70 -- Large Amateur Telescope Project
San Luis ObispoCentral Coast Astronomical Society
San MateoCCFF Astronomy Club
San MateoSan Mateo County Astronomical Society110
Santa BarbaraSanta Barbara Astronomical Unit
Santa ClaritaLocal Group Astronomy Club
Santa CruzSanta Cruz Astronomy Club
Santa MonicaSanta Monica Amateur Astronomy Club
Santa RosaSonoma County Astronomical Society150
Sherman Oaks!Sherman Oaks Astronomers Group5
Simi Valley!Southern California Observers
Simi ValleyVentura County Astronomical Society
South Lake TahoeLake Tahoe Astronomers6
SpringvilleTule River Amateur Astronomers
StocktonStockton Astronomical Society
TehachapiGreater Tehachapi Astronomy Club
TemeculaFirstLight Astronomy Club
TemeculaStony Ridge Observatory, Inc.
TorranceSouth Bay Astronomical Society
UkiahUkiah Astronomical Society
Van NuysLos Angeles Valley College Astronomy Group
Vandenberg AFBVandenberg Amateur Astronomical Society
VisaliaTulare Astronomical Association
Walnut creekMt. Diablo Observatory Association
Whittier!Rio Hondo Astronomical Society 12
Yucca ValleyThe Andromeda Society


Boulder!Boulder Valley Amateur Astronomers
Colorado SpringsColorado Springs Astronomical Society
DenverDenver Astronomical Society
DurangoFour Corners Stargazers
Fort CollinsNorthern Colorado Astronomical Society
Glenwood SpringsThree Rivers Astronomy Club
Grand Junction!Palisade Astronomy Connection
Grand JunctionWestern Colorado Astronomy Club24
Gunnison!Gunnison Valley Astronomical Society
LongmontLongmont Astronomical Society
MontroseBlack Canyon Astronomical Society
Pueblo-Rocky Mountain Astronomy Club
PuebloSouthern Colorado Astronomical Society
San Anselmo!Tamalpais Astronomical Society
Steamboat SpringsYampa Valley Astronomy Club


HartfordAstronomical Society of Greater Hartford
New HavenAstronomical Society of New Haven, Inc.
NoankThames Amateur Astronomical Society
StratfordBoothe Memorial Astronomical Society
Torrington!Litchfield Hills Amateur Astronomy Club
WestportWestport Astronomical Society


SmyrnaDelmarva Star Gazers
WilmingtonDelaware Astronomical Society

District of Columbia

College Park, MDNational Capital Astronomers


BradentonLocal Group of Deep Sky Observers
CocoaBrevard Astronomical Society
Fort LauderdaleSouth Florida Amateur Astronomers Assn.
Fort MyersSouth West Florida Astronomical Society
Fort PierceTreasure Coast Astronomical Society45
GainesvilleAlachua Astronomy Club, Inc.
JacksonvilleNortheast Florida Astronomical Society, Inc.
MelbourneFIT Astronomy Society
MiamiSouthern Cross Astronomical Society
NaplesEverglades Astronomical Society
Panama CityAstronomical Society of Bay County12
PensacolaEscambia Amateur Astronomers Assn.
SebringHighlands Stargazers
St. PetersburgSt. Petersburg Astronomy Club, Inc.
TallahasseeTallahassee Astronomical Society
TampaMARS Astronomy Club
TitusvilleKennedy Space Center Amateur Astronomers30
West Palm BeachAstronomical Society of the Palm Beaches
Winter HavenWinter Haven Astronomy Club
Winter ParkCentral Florida Astronomical Society


Atlanta/MariettaAtlanta Astronomy Club, Inc.
AugustaAstronomy Club of Augusta
CartersvilleNorthwest Georgia Astronomical Association
GainesvilleNorth Georgia Astronomy Club60
GriffinFlint River Astronomy Club
MaconMacon State College Astronomy Club
MaconMiddle Georgia Astronomical Society30
SavannahOglethorpe Astronomical Assn.
SharonDeerlick Astronomy Village
StatesboroGalloway Amateur Astronomy Club20+
StatesboroStatesboro Astronomy Club
TiftonSouthern Georgia Astronomers - SGA


HonoluluHawaiian Astronomical Society


BoiseBoise Astronomical Society
JeromeMagic Valley Astronomical Society


AltonSt. Louis Astronomical Society
BataviaFox Valley Astronomical Society
CarbondaleAstronomical Association of Southern Illinois30
ChampaignChampaign-Urbana Astronomical Society
ChicagoChicago Astronomer370
ChicagoChicago Astronomical Society
ChicagoRyerson Astronomical Society
DecaturDecatur Area Astronomy Club
DeerfieldSkokie Valley Astronomers45
DixonNorthern Illinois Stargazers
KankakeeKankakee Area Stargazers45
NapervilleNaperville Astronomical Assn.
NormalTwin City Amateur Astronomers, Inc.
PeoriaPeoria Astronomical Society, Inc.
Rock IslandPopular Astronomy Club, Inc.
SchaumburgNorthwest Suburban Astronomers
SpringfieldSangamon Astronomical Society
UrbanaAstronomical Society at Univ. of Illinois
VoloLake County Astronomical Society90


ColumbusColumbus Astronomy Club
EvansvilleEvansville Astronomical Society, Inc.
Fort WayneFort Wayne Astronomical Society, Inc.
GriffithCalumet Astronomical Society75
MooresvilleIndiana Astronomical Society, Inc.150
South BendMichiana Astronomical Society20
WabashWabash County Astronomical Society
West LafayetteWabash Valley Astronomical Society
Winona LakeWarsaw Astronomical Society


AmesAmes Area Amateur Astronomers
Cedar RapidsCedar Amateur Astronomers, Inc.
Des MoinesDes Moines Astronomical Society, Inc.
Des MoinesDes Moines Astronomy Club
West BurlingtonSoutheast Iowa Astronomy Club


LawrenceAstronomy Associates of Lawrence
SalinaSalina Astronomy Club
TopekaHeartland Astronomical Research Team
TopekaNortheast Kansas Amateur Astronomers' League, Inc.
WichitaKansas Astronomical Observers


Dawson SpringsWestern Kentucky Amateur Astronomers
HuntingtonOhio Valley Astronomical Society
LexingtonBlue Grass Amateur Astronomy Club
LouisvilleLouisville Astronomical Society100
Pine KnotBig South Fork Star Gazers
StaffordsvilleEastern Kentucky Astronomy Connection


Baton RougeBaton Rouge Astronomical Society, Inc.
New OrleansPontchartrain Astronomy Society, Inc.
ShreveportShreveport-Bossier Astronomical Society, Inc.


BangorPenobscot Valley Star Gazers
BoothbayCentral Maine Astronomical Society30
GreeneMaine Astronomical Society
KennebunkportAstronomical Society of Northern New England
KennebunkportEastern Sky Observatory and Weather Station
PembrokeDowneast Amateur Astronomy Club


BaltimoreBaltimore Astronomical Society
Bel AirHarford County Astronomical Society
CentrevilleNorthern Virginia Astronomy Club
ColumbiaHoward Astronomical League
FrostburgCumberland Astronomy Club
GreenbeltGoddard Astronomy Club
HagerstownTri-State Astronomers25
LanhamGreenbelt Astronomy Club
SykesvilleWestminster Astronomical Society
White PlainsSouthern Maryland Astronomical Society


AmherstAmherst Astronomy Assn.
BostonBoston University Astronomical Society
Boston & WestfordAmateur Telescope Makers of Boston, Inc.
BrewsterCape Cod Astronomical Society
EdgartownMartha's Vineyard Astronomy Club
GloucesterGloucester Area Astronomy Club
GrovelandNorth Shore Amateur Astronomy Club117
NorwellSouth Shore Astronomical Society35
PaxtonAldrich Astronomical Society50
PittsfieldPittsfield Astronomy Club
PlymouthBay Colony Astronomical Society
RehobothAstronomical Society of Southern New England
SpringfieldSpringfield Stars Club75


Ann ArborUniversity of Michigan Student Astronomical Societ
DearbornFord Amateur Astronomy Club153
DexterUniversity Lowbrow Astronomers
East LansingCapital Area Astronomy Club
FlintGenesee Astronomical Society
Grand RapidsGrand Rapids Amateur Astronomical Association.
HollandShoreline Amateur Astronomical Association20
JacksonAmateur Astronomers of Jackson28
KalamazooKalamazoo Astronomical Society
MidlandSeven Ponds Astronomy Club
MidlandSunset Astronomical Society
MuskegonMuskegon Astronomical Society
Rochester HillsOakland Astronomy Club25
RockwoodSirius Stargazers
Traverse CityGrand Traverse Astronomical Society
WarrenWarren Astronomical Society
YpsilantiEastern Michigan Univ. Astronomy Club


DuluthArrowhead Astronomical Society, Duluth MN20
Minneapolis and St. PaulMinnesota Astronomical Society400
MoorheadFargo-Moorhead Astronomical Club 15


French CampRainwater Astronomers Assn.30
JacksonJackson Astronomical Association


Blue SpringsAstronomical Society of Kansas City
ColumbiaCentral Missouri Astronomical Association
SpringfieldOzarks Amateur Astronomers Club
SpringfieldSpringfield Astronomical Society
St. LouisSt. Louis Astronomical Society, Inc.
WashingtonEastern Missouri Dark Sky Observers


BillingsYellowstone Valley Amateur Astronomers
BozemanSouthwest Montana Astronomical Society
KalispellBig Sky Astronomy Club
MissoulaWestern Montana Astronomical Association


LincolnPrairie Astronomy Club
OmahaOmaha Astronomical Society90
ScottsbluffPanhandle Astronomy Club25


HendersonAstronomical Society of Nevada, Las Vegas
Las VegasLas Vegas Astronomical Society
Reno, Tonopah, Las VegasAstronomical Society of Nevada
TonopahTonopah Astronomical Society

New Hampshire

AlsteadKeene Amateur Astronomers, Inc.
ManchesterNew Hampshire Astronomical Society150

New Jersey

BoontonSheep Hill Astronomical Association
BridgewaterSomerset County 4-H Space & Astronomy Club20
CliftonNorth Jersey Astronomical Group50
ClosterRockland Astronomy Club
CranfordAmateur Astronomers, Inc.221
East HanoverSkyland Stargazers15
GloucesterWillingboro Astronomical Society
High BridgeNew Jersey Astronomical Assn., Inc.
HowellMonmouth Mobile Observer's Group
JamesburgConcordia Astronomy Club
Little FerrySETI League, Inc.1467
MorristownMorris Museum Astronomical Society25
NewtonDark Sky Observers
NewtonMontclair Telescope Club, Inc.
PatersonThe Passaic County Astronomical Association
PrincetonAmateur Astronomers Association of Princeton
Red BankSTAR Astronomy Society, Inc.60
Toms RiverASTRA -Astronomical Society of the Toms River Area75
Upper TownshipSouth Jersey Astronomy Club110
WarrenUnited Astronomy Clubs of New Jersey, Inc.
West MilfordThe Dark Sky Observer

New Mexico

AlamogordoAlamogordo Astronomy Club40
AlbuquerqueThe Albuquerque Astronomical Society
CorralesRio Grande Astronomical Society (RGAS)86
Las CrucesAstronomical Society of Las Cruces100
Los AlamosPajarito Astronomers
RanchvaleClovis Astronomy Club
Rio RanchoRio Rancho Astronomical Society
RoswellRoswell Astronomy Club
SocorroNew Mexico Tech Astronomy Club
TaosEl Valle Astronomers

New York

BuffaloBuffalo Astronomical Association150
ChappaquaWestchester Amateur Astronomers
ClintonMohawk Valley Astronomical Society
IthacaIthaca Amateur Astronomers
JamestownMarshal Martz Memorial Astronomical Assn., Inc.
MassapequaAstronomical Society of Long Island, Inc.
Merrick, Long IslandAmateur Observer's Society of New York, Inc.
New PaltzMid-Hudson Astronomy Assn.75
New YorkAmateur Astronomers Assn.
NiskayunaAlbany Area Amateur Astronomers, Inc.
Orange CountyOrange County Astronomical Association
RochesterRochester's Astronomy Club350
SoutholdCuster Institute Observatory
SyracuseSyracuse Astronomical Society60
TroyRensselaer Astrophysical Society25
VestalKopernik Astronomical Society

North Carolina

Archdale/High PointTriad Action Astronomy Club
AshevilleAstronomy Club of Asheville45
AshevilleStarfax Assn.
AshevilleStarfax Association
Boiling SpringsCleveland County Astronomical Society
Chapel HillChapel Hill Astronomical and Observational Society
CharlotteCharlotte Amateur Astronomers Club
ColumbusFoothills Astronomical Society
GreensboroGreensboro Astronomy Club
HickoryCatawba Valley Astronomy Club45
RaleighRaleigh Astronomy Club, Inc.80 - 1
RosmanPisgah Astronomical Research Institute
SalisburyAstronomical Society of Rowan County
TroutmanPiedmont Amateur Astronomers
WilmingtonCape Fear Astronomical Society
WilsonTar River Astronomy Club
Winston-SalemForsyth Astronomical Society
Winston-SalemLogos Astronomical Society

North Dakota

Grand ForksNorthern Skies Astronomical Society


AkronAstronomy Club of Akron, Inc.
BellaireNorthern Ohio Valley Astronomical Educators (NOVAE7
BrunswickBrunswick Astronomy Club
Chagrin FallsChagrin Valley Astronomical Society40
ColumbusColumbus Astronomical Society
DaytonMiami Valley Astronomical Society110
FindlayMillstream Astronomy Club
HuntingtonOhio Valley Astronomical Society
LakewoodOhio Turnpike Astronomers Assn.
LimaLima Astronomical Society32
LucasAstronomy For Youth12
MansfieldRichland Astronomical Society
MansfieldSandusky Valley Amateur Astronomy Club
MedinaMedina County Astronomical Society
Newton FallsMahoning Valley Astronomical Society
North OlmsteadCuyahoga Astronomical Association
OberlinBlack River Astronomical Society 35
TroyStillwater Stargazers
WilmotWilderness Center Astronomy Club
WoosterWayne County Astronomical Society25


Oklahoma CityOklahoma City Astronomy Club
StillwaterTuva Astronomy Club
TulsaAstronomy Club of Tulsa
WanetteOdyssey Astronomy Club


AshlandSouthern Oregon Skywatchers
BendFriends of the (Pine Mountain) Observatory
BoringMt. Hood Observatory Assn.
EugeneEugene Astronomical Society
PortlandRose City Astronomers
RoseburgUmpqua Astronomers
SalemNight Sky 45 Astronomy Club80
VernoniaNorthwest Astronomy Group


AllentownLehigh Valley Amateur Astronomical Society, Inc.
altoonaStarlight Astronomy Club
AvondaleChester County Astronomical Society
ChalfontBucks-Mont Astronomical Assn.
Clarks SummitLackawanna Astronomical Society100
ConynghamGreater Hazleton Area Astronomical Society30
ErieErie County Mobile Observers Group
Franklin/Oil CityOil Region Astronomical Society30
Harleysville90mm 5
HarrisburgAstronomical Society of Harrisburg
KaneSir Isaac Newton Astronomical Society
LancasterAstronomy Enthusiasts of Lancaster County
LewisburgSusquehanna Valley Amateur Astronomers
LimerickChesmont Astronomical Society
NorristownDelaware Valley Amateur Astronomers
PhiladelphiaRittenhouse Astronomical Society
PittsburghAmateur Astronomers Assn. of Pittsburgh, Inc.
SaltsburgThe Kiski School Astronomy Club25
State CollegeCentral Pennsylvania Observers
University ParkPenn State Astronomy Club
VillanovaVillanova Astronomical Societyvaries
Western PennsylvaniaAmateur Astronomers of Beaver County
WyomissingBerks County Amateur Astronomical Society, Inc.
YorkYork County Astronomical Society

Rhode Island

North ScituateSkyscrapers, Inc.
ProvidenceCelestial Observers of Rhode Island
RehobothAstronomical Society of Southern New England

South Carolina

BeaufortBeaufort South Carolina Astronomer
CharlestonLowCountry Stargazers17
ColumbiaMidlands Astronomy Club80
ColumbusFoothills Astronomical Society
GreenvilleRoper Mountain Astronomers
Myrtle BeachGrand Strand Skygazers15
Rock HillCarolina Skygazers Astronomy Club
SenecaClemson Area Amateur Astronomers
SenecaUpstate Astrophotography3

South Dakota

Rapid CityBlack Hills Astronomical Society
Sioux FallsSioux Empire Astronomy Club


BrentwoodBarnard-Seyfert Astronomical Society
BristolBristol Astronomy Club
BristolBristol Astronomy Club
ChattanoogaBarnard Astronomical Society
GallatinCumberland Astronomical Society35
KingsportBays Mountain Astronomy Club
KnoxvilleKnoxville Observers
KnoxvilleSmoky Mountain Astronomical Society
ManchesterMiddle Tennessee Astronomical Society
MemphisMemphis Astronomical Society


ShermanAstronomical Society of North Texas
AlpineBig Bend Astronomical Society
AmarilloAmarillo Astronomy Club45
ArlingtonOlympus Mons
AustinAustin Astronomical Society200
AzaleNorth Texas Skywatch
College StationAssn. of Amateur Astronomers
DallasTexas Astronomical Society
El PasoEl Paso Astronomy Club
FlintAstronomical Society of East Texas
Fort WorthFort Worth Astronomical Society, Inc.
GeorgetownWilliamson County Astronomy Club
HoustonFort Bend Astronomy Club
HoustonHouston Astronomical Society250
Houston (Clear Lake Area)Johnson Space Center Astronomical Societyunknow
KingsvilleKingsville Astronomical Society15
KingwoodNorth Houston Astronomy Club
LeanderAstronomy Students Association - UT/Austin
LubbockSouth Plains Astronomy Club
MidlandWest Texas Astronomers
North Richland HillsWhitney Astronomy
San AngeloSan Angelo Amateur Astronomy Assn.57
San AntonioSan Antonio Astronomical Association
San AntonioSan Antonio Astronomical Observers Group
VictoriaCrossroads Astronomy Club
WacoCentral Texas Astronomical Society130
Wichita FallsStarlight Observers League - SOL


LindonUtah Valley Astronomy Association
OgdenOgden Astronomical Society
Park CityUtah Skies1000+
ProvoBrigham Young University Astronomical Society
Salt Lake CitySalt Lake Astronomical Society


ManchesterHildene Astronomy Club
SpringfieldSpringfield Telescope Makers100
WillistonVermont Astronomical Society


BlacksburgAstronomy Club of Virginia Tech
CharlottesvilleCharlottesville Astronomical Society
ChesapeakeNorfolk Astronomical Society25
FincastleRoanoke Valley Astronomical Society
FranklinSouthampton Astronomers20
FredericksburgRappahannock Astronomy Club
Hampton/Newport News/WilliamsbSkywatchers Astronomy Club
MiddletownShenandoah Astronomical Society45
RichmondRichmond Astronomical Society
RoanokeStar City Astronomy Network 10
Virginia BeachBack Bay Amateur Astronomers


Bainbridge IslandBattle Point Astronomical Assn.
BellevueEast Side Astronomical Society
CusterWhatcom Association of Celestial Observers
EverettEverett Astronomical Society
Friday HarborSirius Dippers 8
Maple ValleyMaple Valley Astronomical Society25
Maple valleyMaple Valley Astronomy 2
Oak HarborIsland County Astronomical Society30
Port GambleOlympic Astronomical Society
PullmanWashington State University Astronomy Club
RichlandTri-City Astronomy Club
SeattleBoeing Employees' Astronomical Society
SeattleSeattle Astronomical Society
SpokaneSpokane Astronomical Society
TacomaTacoma Astronomical Society
VancouverVancouver Sidewalk Astronomers
YakimaYakima Valley Astronomy Club

West Virginia

AthensThe Astronomy Club of Southern West Virginia
ClarksburgCentral Appalachian Astronomy Club28
Cross LanesKanawha Valley Astronomical Society, Inc.
HuntingtonOhio Valley Astronomical Society
MorgantownAstronomy Club of West Virginia University
WheelingASTROLABE Astronomy Club of Wheeling


AppletonNortheast Wisconsin Stargazers75
Brown DeerNorthern Cross Science Foundation
Fall CreekChippewa Valley Astronomical Society
FranklinWehr Astronomical Society
Green BayNeville Public Museum Astronomical Society
HolmenHolmen Astronomy Club
LaCrosseLaCrosse Area Astronomical Society50
MadisonMadison Astronomical Society
MilwaukeeTry Astronomy Milwaukee
New BerlinMilwaukee Astronomical Society
SheboyganSheboygan Astronomical Society30
Sturgeon BayDoor Peninsula Astronomical Society
Union GroveRacine Astronomical Society


CasperCentral Wyoming Astronomical Society
CheyenneCheyenne Astronomical Society
GilletteCampbell County High School Astronomy Club
LaramieLaramie Astronomical Soicety & Space Observers


OvergaardHeber-Overgaard astronomy Club



Silver CitySilver City Astronomical Society 20



ConstantineSirius Astronomy Association 70




AhmedabadAstronomy Club Ahmedabad


Ulan BatorAmateur Astronomy Club of Mongolia46


BirgunjNepali Association for Astronomical Mission (NAAM)15

Viet Nam

HanoiVietnam Amateur Club of Astronomy (VACA)


Capital Territory

CanberraCanberra Astronomical Society

New South Wales

CoonabarabranAstronomical Society of Coonabarabran 30
NewcastleNewcastle Astronomical Society, Inc.
SydneyAstronomical Society of New South Wales, Inc.
SydneyNorthern Sydney Astronomical Society
SydneyWestern Sydney Amateur Astronomy Group
WollongongIllawarra Astronomical Society, Inc.
WollongongThe Wollongong Amateur Astronomy Club
WollongongWollongong Astronomy

Northern Territory

Alice SpringsAstronomical Society of Alice Springs
KaramaDarwin Amateur Astronomy Group


BrisbaneAstronomical Association of Queensland100
BrisbaneSouth East Queensland Astronomical Society26
BundabergBundaberg Skywatchers
Bundaberg SouthBundaberg Astronomical Society, Inc.
MorningsideBrisbane Astronomical Society, Inc.
White RockCairns Astronomy Group

South Australia

AdelaideAstronomical Society of Flinders University
AdelaideAstronomical Society of South Australia, Inc.
AdelaideFlinders University Astronomcial Society
BentleighAstronomical Society of Melbourne


CambridgeAstronomical Society of Tasmania, Inc.


BendgoBendigo District Astronomical Society, Inc.
FrankstonMornington Peninsula Astronomical Society
MelbourneAstronomical Society of Victoria, Inc.
Mount PleasantBallaarat Astronomical Society, Inc.
Snake ValleySnake Valley Astronomical Association
Traralgon BCLatrobe Valley Astronomical Society, Inc.

Western Australia

PerthAstronomical Society of Western Australia



CalgaryRASC -- Calgary Centre
Drayton ValleyAncient Light Astronomy Club20
EdmontonEdmonton Observers Group Network122
EdmontonRASC -- Edmonton Centre225
EdmontonSpaceAlberta, affiliated with Edmonton Observers
LethbridgeLethbridge Astronomy Society
VulcanBig Sky Astronomical Society

British Columbia

AbbotsfordFraser Valley Astronomers Society
KelownaRASC -- Okanagan Centre
Prince GeorgePrince George Astronomical Society
VancouverRASC -- Vancouver
VictoriaRASC -- Victoria Centre200


WinnibegRASC -- Winnipeg Centre

New Brunswick

DieppeBeauséjour Astronomy Club Astronomie Beauséjour
FrederictonRASC Moncton Centre, William Brydone Jack Unit20
HamptonHampton Astronomy Club
Riviere-VerteAstro Club Borealis
Saint JohnNew Brunswick Astronomy -- Astronomie Nouveau Brun
ShippaganClub d'astronomie de la Péninsule acadienne
Various in NBRASC Moncton Centre80


St. JohnsRASC -- St. John's Centre

Nova Scotia

HalifaxRASC -- Halifax Centre
Sydney RiverCape Breton Astronomical Society
WolfvilleMinas Astronomy Group26


Deep RiverDeep River Astronomy Club
HamiltonHamilton Amateur Astronomers80
KingstonRASC -- Kingston Centre
Kitchener/WaterlooRASC -- Kitchener-Waterloo Centre
LondonRASC -- London Centre120
LondonSt.Marys Astronomy Club12
ManitoulinManitoulin Island Dark Sky Association
MiltonRASC -- Hamilton Centre
MooretownRASC -- Sarnia Centre
Niagara FallsRASC -- Niagara Centre
North BayNorth Bay Astronomy Club
OshawaDurham Region Astronomical Association
OttawaOttawa Valley Astronomy and Observers Group
OttawaRASC -- Ottawa Centre
PeterboroughPeterborough Astronomical Association
Port ElginBruce County Astronomical Society
RuthvenRASC -- Windsor Centre
SudburySudbury Astronomy Club30
Thunder BayRASC -- Thunder Bay Centre40
Thunder BayThunder Bay Asronomy Group
Thunder BayThunder Bay Observatory45
TorontoAstronomy and Space Exploration Society (U of T)1200
TorontoNorth York Astronomical Association
TorontoRASC -- Toronto Centre
YorkYork University Astronomy Club

Prince Edward Island

CharlottetownRASC -- Charlottetown Centre


(QuébecRASC -- Québec Centre
BeloeilClub d'Astronomie de Beloeil
Cap-RougeClub d'astronomie VÉGA de Cap-Rouge
Centre-MauricieClub des Astronomes Amateurs Centre-Mauricie
DorvalClub d'Astronomie de Dorval50
DrummondvilleClub d'Astronomie Drummondville, Inc.
LavalClub des Astronomes Amateurs de Laval
LévisClub d'Astronomie du CEGEP Lévis-Lauzon
LongueuilClub des Astronomes Amateurs de Longueuil
MontréalGroupe Astro & CCD37
MontréalLa Société d'Astronomie de Montréal100
MontréalRASC -- Montréal Centre
Pierre-de-CoubertinFédération des Astronomes Amateurs du Québec
RimouskiClub d'Astronomie de l'U. du Québec a Rimouski
SaguenayClub d'Astronomie Sirius
SherbrookeClub des Astronomes Amateurs de Sherbrooke
SilleryClub d'astronomie Cassiopée de Sillery
Trois-Riviegrave;resClub d'Astronomie Jupiter, Inc.
ValleyfieldClub d'Astronomie Orion de Saint-Timothée


ReginaRASC -- Regina Centre
SaskatoonRASC -- Saskatoon Centre



CastriesSt.Lucia Royal Astronomy Club50


Czech Republic

PragueCzech Astronomical Society


NürnbergNürnberger Astronomische Arbeitsgeminschaft
TübingenInstitut für Astronomie und Astrophysik


LimerickShannonside Astronomy50
TullamoreTullamore Astronomical Society


MilanCircolo Astrofili Astrum Caeli17


San Luis PotosíSociedad Astronómica Julieta Fierro Gossman30


Royal Astronomical Society of New Zealand


AshburtonCanterbury Astronomical Society, Ashburton Branch
ChristchurchCanterbury Astronomical Society~200

South Auckland

AucklandAuckland Astronomical Society600


InvercargillSouthland Astronomical Society


New PlymouthNew Plymouth Astronomical Society


WellingtonPhoenix Astronomical Society
WellingtonWellington Astronomical Society


Grants PassGrants Pass Astronomers15


Telescope Group10



ValparaísoSociedad Astronómica de Valparaíso y Viña del Mar.


Western Province

ColomboIYA 2009 Sri Lanka 55
ColomboSkyLK 100


AbingdonAbingdon Astronomical Society70
Barrow-in-FurnessFurness & South Lakeland Astronomical Society15
BatleyBatley & Spenborough Astronomical Society
BedfordBedford Astronomical Society
BingleyHebden Bridge Astronomy Society
BirminghamHeart of England Astronomical Society
BlackpoolBlackpool & District Astronomical Society
Bognor RegisSouth Downs Astronomical Society
BoltonBolton Astronomical Society
BracknellHerschel Astronomical Society
BradfordBradford Astronomical Society70
BridgwaterBridgwater Astronomical Society20
BrightonBrighton and Hove Astronomical Society
BristolBristol Astronomical Society
BurghfieldNewbury Amateur Astronomical Society
CambridgeCambridge Astronomical Association1000
ChathamMid-Kent Astronomical Society
ChesterfieldChesterfield Astronomical Society
ChichesterSouthern Area Group of Astronomical Societies
Clacton on SeaClacton & District Astronomical Association
ClevelandCleveland & Darlington Astronomical Society
CondoverShropshire Astronomical Society
CoventryCoventry & Warwickshire Astronomical Society
CrayfordCrayford Manor House Astronomical Society
CroydonCroydon Astronomical Society80
DerbyDerby & District Astronomical Society
Durham CityDurham University Astronomical Society
EastbourneEastbourne Astronomical Society
ElloughtonEast Riding Astronomers36
ExeterExeter Astronomical Society
FarnhamFarnham Astronomical Society
FolkestoneSouth East Kent Astronomical Society
GatleyAltrincham & District Astronomical Society
GiltbrookNottingham Astronomical Society
GuildfordGuildford Astronomical Society
HampshireHampshire Astronomical Group130
HooleChester Astronomical Society
HorshamHorsham Astronomy Group
HuddersfieldHuddersfield Astronomical & Philosophical Society
IpswichOrwell Astronomical Society
IpswichOrwell Astronomical Society (Ipswich)
LancasterLancaster & Morecambe Astronomical Society
LeedsLeeds Astronomical Society40
LeicesterLeicester University Astronomical Society
LetchworthLetchworth & District Astronomical Society
LincolnLincoln Astronomical Society45
LiverpoolLiverpool Astronomical Society
LondonBritish Astronomical Association
LondonSociety for Popular Astronomy
MaidenheadMaidenhead Astronomical Society
ManchesterManchester Astronomical Society
MexboroughMexborough & Swinton Astronomical Society
Milton KeynesMilton Keynes Astronomical Society30
Newcastle-Under-LymeNorth Staffordshire Astronomical Society
North CornellyFederation of Astronomical Societies
North DevonNorth Devon Astronomical Society
North West LondonSouth West Herts Astronomical Society
NorthamptonNorthamptonshire Natural History Society, Astronom
NorwichBreckland Astronomical Society
NorwichNorwich Astronomical Society140
NottinghamIlkeston & District Astronomical Society
NottinghamshireMansfield & Sutton Astronomical Society
OrpingtonOrpington Astronomical Society
PeterboroughPeterborough Astronomical Society
PlymouthPlymouth Astronomical Society40
PontefractWest Yorkshire Astronomical Society
RayleighCastle Point Astronomical Club
SaleMacclesfield Astronomical Society
ShinfieldReading Astronomical Society
ShirleySouthampton Astronomical Society
SpaldingSouth Lincolnshire Astronomical & Geophysical Soci40
SunderlandSunderland Astronomical Society
SuttonBirmingham Astronomical Society
ThameAylesbury Astronomical Society
Theydon BoisLoughton Astronomical Society
WellingboroughNorthants Amateur Astronomers
West EwellEwell Astronomical Society
WhittingtonWelsh Border Astronomers
WithamNorth Essex Astronomical Society
WorcesterWorcester Astronomical Society
Wrea GreenPreston & District Astronomical Society
WycombeWycombe Astronomical Society
YorkYork Astronomical Society


DunfermlineDunfermline Astronomical Society70



Island of Guernsey

St Peter PortGuernsey Astronomy Society60

Isle of Man

PeelIsle of Man Astronomical Society


AberdeenAberdeen & District Astronomical Society
DundeeDundee Astronomical Society
EdinburghAstronomical Society of Edinburgh
GlasgowAstronomical Society of Glasgow
InvernessHighland Astronomical Society76


WorthingWorthing Astronomers 80 +


CardiffCardiff Astronomical Society250
GowertonSwansea Astronomical Society
LlanrugGwynedd Astronomical Society
LlanrugNorthwest Group of Astronomical Societies


Eagar-White Mountains Astronomy Club
Sun City WestAstronomy Club of Sun City West-


Modesto-Stanislaus Amateur Astronomers


Pueblo-Rocky Mountain Astronomy Club


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