Astronomical Society of Rowan County (ASRC)
Non-profit educational organization in Salisbury, North Carolina.
http://members.dialstar.com/asrc/

Amateur Astronomers Association of Pittsburgh
Information about the club's members, functions, and monthly event calendar. Located in Pennsylvania.
http://trfn.clpgh.org/aaap/

Amateur Astronomers Association of Princeton (AAAP)
New Jersey astronomy club involved with all aspects of astronomy. Two active observatories. Monthly meetings at Princeton University.
http://www.princetonastronomy.org

American Association of Amateur Astronomers (AAAA)
News, events, publication discounts for members, CCD image gallery, links to members' astronomy sites. The AAAA is based in Dallas, Texas.
http://www.corvus.com

Amherst Astronomy Association
Conducts free astronomy programs open to the public. Located in Amherst, Massachusetts.
http://www.amastro.org

Astronomical Society of Northern New England (ASNNE)
The club and its observatory are located in Kennebunk, Maine.
http://www.asnne.org

Huachuca Astronomy Club
Lives under the dark skies of Southeastern Arizona. Provides information on all aspects of astronomy.
http://c3po.cochise.cc.az.us/astro/

Auburn Astronomical Society
An astronomy club for anyone interested in astronomy, from beginner to professional. Located in Auburn, Alabama.
http://www.mindspring.com/~rwhigham/

Austin Astronomical Society (AAS)
A non-profit organization for anyone interested in astronomy or space sciences. Located in Austin, Texas.
http://www.austinastro.org/

Battle Point Astronomical Association
A non-profit amateur astronomy organization located in Bainbridge Island, Washington, the BPAA has constructed and operates the Edwin E. Ritchie Observatory at Battle Point Park.
http://bicomnet.com/ritchieobs/

Birmingham Astronomical Society
Membership details, viewing sites, resources and articles, beginner tips, events and activities, and trading post. Located in the Birmingham, Alabama, area.
http://www.bas-astro.com/

Cedar Amateur Astronomers
A large, family-oriented club of amateur astronomers in and around Cedar Rapids, Iowa.
http://cedar-astronomers.org

Colorado Springs Astronomical Society (CSAS)
Currently has over 100 members; site provides information about membership, meetings and events.
http://www.rmss.org/

Central Washington University Astronomy Club
Information about membership, meetings and observing.
http://www.cwu.edu/~astroclb/

Cuyahoga Astronomical Association (CAA)
A nonprofit organization for amateur astronomers that has a permanent observatory facility. Site details association activities, news, and membership information. Based in North Olmsted, Ohio.
http://www.geocities.com/cuyastro/

Delaware Valley Amateur Astronomers (DVAA)
Meetings usually are held at the Schuylkill Center for Environmental Education (SCEE) in Philadelphia, Pennsylvania.
http://dvaa.org

Fort Wayne Astronomical Society (FWAS)
Amateur astronomy club in Fort Wayne, Indiana.
http://members.aol.com/thefwas/

Galileo Society
Amateur astronomers in the western portion of Maine.
http://www.geocities.com/CapeCanaveral/6506/

Kentwood Amateur Astronomy League (KAAL)
Dedicated to helping people advance their knowledge of astronomy. Located in the suburbs of Grand Rapids, Michigan.
http://www.kaal.org/

Madison Astronomical Society
A non-profit educational organization promoting astronomy and the allied physical sciences. Located in Madison, Wisconsin.
http://www.madisonastro.org

Kalamazoo Astronomical Society (KAS)
Open to anyone interested in astronomy. Located in Kalamazoo, Michigan.
http://www.stargazing.net/kas/

Peninsula Astronomical Society
A group of over 200 San Francisco bay-area astronomy enthusiasts of all ages and backgrounds.
http://www.foothill.fhda.edu/ast/pas.htm

Los Angeles Valley College Astronomy Club
Information about club meetings, lectures, star parties and planetarium shows.
http://www.astrophys-assist.com/lavc/

National Deep-Sky Observers Society (NDSOS)
Dedicated to serving amateur deep-sky observers. Located in Louisville, Kentucky.
http://www.cismall.com/deepsky/

Northeast Florida Astronomical Society (NEFAS)
Serves amateur astronomers from Jacksonville, the Beaches, Orange Park, and Nassau County, Florida.
http://www.nefas.org

Northern Colorado Astronomical Society
Club located in Fort Collins, Colorado.
http://ncastro.org/

Northern Cross Science Foundation
A non-profit organization registered with the State of Wisconsin. Promotes astronomy and related sciences and fosters public education in these fields.
http://www.gxsc.com/ncsf/

Northern Sky Astronomical Society
An amateur astronomy club based in Grand Forks, North Dakota.
http://www.und.edu/org/nsas/

The Northern Virginia Astronomy Club (NOVAC)
Strives to be a friendly club with a focus on observing. Located in Northern Virginia, near Washington D.C.
http://www.novac.com

Ohio Valley Astronomical Society
An amateur astronomy organization dedicated to promoting astronomy. Based in Huntington, West Virginia.
http://www.ovas.org

Peoria Astronomical Society
Astronomical society which maintains materials on constellations, planet orbits, tips for beginners and information on current astronomical events. Located in Peoria, Illinois.
http://www.astronomical.org/

Riverside Astronomical Society
Bringing the joys of astronomy to the public in and around Riverside, California. Star parties, monthly meetings, public outreach, telescope making and other activities.
http://www.rivastro.org/

San Diego Astronomy Association (SDAA)
Describes the group's activities, including public star parties at the Tierra Del Sol observatories in California.
http://www.sdaa.org/

Rainwater Astronomical Association (RAA)
An amateur astronomical organization in French Camp, Mississippi.
http://rainwater.astronomers.org/raa/

Roper Mountain Astronomers
Club at Roper Mountain Science Center, home to a 23-inch Alvin Clark refractor telescope, in Greenville, South Carolina.
http://www.rmastro.com/

Saguaro Astronomy Club
Formed in 1977 in Phoenix, Arizona, the 100-odd member SAC meets monthly for both general meetings and observing sessions, and regularly conducts and supports public programs on astronomy.
http://www.saguaroastro.org

San Antonio Astronomical Association
Club information, events, astronomy news and issues, and links to related sites. Located in San Antonio, Texas.
http://www.sanantonioastronomy.org/

Shreveport-Bossier Astronomical Society
A non-profit corporation in Louisiana. Dedicated to the study of amateur astronomy. Membership open to anyone at least ten years of age.
http://www.lsus.edu/nonprofit/sbas/

San Francisco Sidewalk Astronomers
Dedicated to taking your telescope to the sidewalk. Also has telescopes for you to borrow for free. San Francisco, California.
http://members.aol.com/raycash/sidewalk.htm

Southern Cross Astronomical Society (SCAS)
An amateur astronomical society in Miami, Florida.
http://www.scas.org/

Los Angeles Sidewalk Astronomers
Group uses homemade telescopes set up on street corners in Los Angeles, California. Shares astronomical views with passersby for free.
http://www.geocities.com/CapeCanaveral/6389/

South Jersey Astronomy Club
An amateur astronomy club based in Port Elizabeth, New Jersey, SJAC serves the Cape May, Salem, Gloucester, Cumberland and Atlantic Counties, and hosts the annual South Jersey Star Party.
http://hometown.aol.com/sjastroc

Spokane Astronomical Society
Experienced amateur astronomers in Spokane, Washington. Group also offers learning opportunities to the public.
http://www.spokaneastronomical.org

Williamson County Astronomy Club (WCAC)
Serving Williamson County and the northern Austin, Texas, suburban area. Membership is open to people of all ages interested in amateur astronomy and the space sciences.
http://www.atm-workshop.com/wcac/

S*T*A*R Astronomy Club
A non-profit astronomical society in Monmouth County, New Jersey.
http://www.starastronomy.org/

Von Braun Astronomical Society (VBAS)
Operates a planetarium and observatory located atop Monte Sano Mountain in Monte Sano State Park just east of Huntsville, Alabama.
http://www.vbas.org

Stillwater Stargazers and Brukner Nature Center
A family-oriented group of amateur astronomers located in Troy, Ohio.
http://www.dma.org/~wagner/ss_bnc.htm

Twin City Amateur Astronomers (TCAA)
Bringing astronomy to the masses in and around Bloomington-Normal, Illinois.
http://twincityamateurastronomers.org/

UC Davis Astronomy Club
Provides a list of frequently asked questions and public viewing information. Includes maps and directions.
http://maxwell.ucdavis.edu/~astro/

Western Kentucky Amateur Astronomers (WKAA)
A group of amateur astronomers that enjoys sharing their knowledge of astronomy and their love of the night sky.
http://wkaa.net

Denver Astronomical Society (DAS)
A group of amateur and professional astronomers who share a mutual interest in the heavens. Denver, Colorado.
http://www.denverastrosociety.org

Naperville Astronomical Association
Amateur club with members from in and around Chicago, Illinois.
http://www.naperastro.org

Rappahannock Astronomy Club
A non-profit organization of amateur astronomers located in the Fredericksburg, Virginia, area.
http://www.raclub.org

Thames Amateur Astronomical Society
Amateur astronomy club located in Southeastern Connecticut.
http://pages.cthome.net/taas/

North Houston Astronomy Club
Provides information about the club, including events and star parties, a list of members and astronomy news.
http://www.astronomyclub.org

Rockland Astronomy Club
Amateur astronomy site features an events calendar, member photography and information about joining the club.
http://www.rocklandastronomy.com

Wilderness Center Astronomy Club
Astronomy club in Wilmot, Ohio; provides tutorials, news and a calendar of events.
http://www.twcac.org

Mount Diablo Astronomical Society
MDAS is a membership based organization that supports public astronomy programs and presents a monthly speaker series on astronomical topics.
http://www.mdas.net

Kansas Astronomical Observers
Located in Wichita, this club with about 50 members holds monthly meetings and has public and private star parties.
http://members.cox.net/thekao/

Sioux Empire Astronomy Club
Provides information about the club located in Sioux Falls, South Dakota.
http://inskysd.org

Southwest Florida Astronomical Society
Find information about the club, its members and star party dates. The club meets at the Caloosa Nature Center and Planetarium in Fort Myers.
http://www.theeyepiece.org

Astronomical Society of Harrisburg (ASH)
Find out how to become a member of this central Pennsylvania club and read the schedule of their public observing sessions.
http://www.astrohbg.org/

Prairie Astronomy Club (PAC)
Dedicated to encouraging amateur astronomers in Lincoln, Nebraska. PAC co-sponsors the annual Nebraska Star Party with the Omaha Astronomy Club.
http://www.prairieastronomyclub.org/

Astronomical Society of Nevada
Amateur astronomical society with member clubs in Reno, Tonopah and Las Vegas.
http://www.astronomynv.org

Las Vegas Astronomical Society
The site includes a list of upcoming events, observation tips, and a gallery of images.
http://www.ccsn.nevada.edu/LVAS/

Norfolk Astronomical Society
Provides a list of events, photos and calculators. The club is located in the Hampton Roads, Virginia region.
http://groups.hamptonroads.com/NAS/

Eugene Astronomical Society
Find meeting information, astronomy news and observing resources. The club is located in Eugene, Oregon.
http://www.eugeneastro.org

Amateur Observers' Society of New York
Established in 1965, the AOS sponsors stargazing activities across Long Island, New York, and lobbies for the reduction of light pollution on the Island and throughout the state.
http://www.benjaminsweb.com/aos

Arizona Astronomy
Contains a weather and star charts, message boards, links, picstures of the planets in our solar system, moon lander, pathfinder, and voyager.
http://www.arizonaastronomy.com/

Boothe Memorial Astronomical Society
Membership organization provides photos and information on meetings, events and membership.
http://www.bmas.org/

Mattatuck Astronomical Society
Contains information on all levels of astronomy in Waterbury, Connecticut.
http://www.mastransit.org

Back Bay Amateur Astronomers
Scientific educational organization of amateur astronomers serving southeastern Virginia. Membership open to all with an interest in astronomy.
http://groups.hamptonroads.com/BBAA/

East Valley Astronomy Club (EVAC)
A group of about 150 amateur astronomy enthusiasts in and around Phoenix, Arizona.
http://www.eastvalleyastronomy.org/EVAC/

South Florida Amateur Astronomers Association
ite provides information about getting started in radio astronomy, CCD imaging, dome construction, the new telescope, and lightpollution.
http://www.sfaaa.org/

Tucson Astronomy
Contains star charts, guides to amateur viewing, and links to astronomy resources.
http://www.tucsonastronomy.com/

Marshall Martz Memorial Astronomical Association and Observatory
Includes a link to a group forum, upcoming local events, contact details, latest space news and general links for a local society in New York.
http://www.martzobservatory.org

Central Texas Astronomical Society
Based in Lorena, Texas, the CTAS is a non-profit scientific and educational organization dedicated to the enjoyment of amateur astronomy and the promotion of astronomy to the public.
http://www.centexastronomy.org

NOVAE Astronomy Club
Located in Bellaire, Ohio. Offers contact and meeting information.
http://novaeastronomy.tripod.com

Whatcom Association of Celestial Observers
A community-based society dedicated to amateur astronomy. Located in Ferndale, Washington, USA.
http://www.whatcomastronomy.org/

Salina Astronomy Club
Located in Salina, Kansas. Features upcoming club activities including the skywatch lecture series, club news, and contact information.
http://www.salina-astro.org

Everett Astronomical Society
Offers newsletter, club meetings, star parties, picture gallery, and frequently asked questions.
http://members.tripod.com/everett_astronomy

Orange County Astronomers
One of the largest astronomy clubs in the USA. Monthly star parties at their own darksky site, as well as outreach events and astrophotography groups. Located in Orange County, California.
http://www.ocastronomers.org/

Amateur Telescope Makers of Boston
One of the nation's oldest and largest amateur astronomy clubs, the ATMoB holds monthly meetings at the Harvard-Smithsonian Center for Astrophysics in Cambridge, MA.
http://www.atmob.org

Amateur Astronomers, Inc.
Promotes amateur astronomy through a variety of courses, lectures and college scholarships. AAI is a member of the United Astronomy Clubs of New Jersey.
http://www.asterism.org/

Astronomical Society of Nevada, Las Vegas (ASN LV)
Provides a calendar of events, newsletter, map of observing sites and a list of club members.
http://www.asnlv.org/

North Shore Amateur Astronomy Club
Membership organization for Essex County, Massachusetts, which promotes a wider appreciation of astronomy. Monthly newsletter, upcoming events, programs, related links and gallery of astronomical images.
http://www.star.net/people/~nsaac/

North Georgia Astronomers
Includes upcoming events, membership information, location maps, PDF newsletters, a discussion group, details of the local observatory and information about a project to construct a scale model of the solar system.
http://northgeorgiaastronomers.org

Big Sky Astronomy Club
A group of dedicated amateur astronomers located in the beautiful Flathead Valley of Northwest Montana, USA. Monthly club meetings, outings and two star parties each summer.
http://www.bigskyastroclub.org

New Jersey Astronomical Association
Founded in the winter of 1965, New Jersey Astronomical Association is a not for profit corporation dedicated to exploring the cosmos.
http://njaa.org

Escambia Amateur Astronomers' Association (EAAA)
A non-profit educational organization in Pensacola, Florida. Serves the Florida panhandle and southern Georgia.
http://www.eaaa.net/eaaasection.htm

Star Gazer Chase Team
Located in Wadsworth, Ohio. Stargazing in Medina, Wayne, and Holmes counties.
http://home.earthlink.net/~pjrohio/astronomy/ASTRO.HTM

Central Valley Astronomers
A group of astronomy enthusiasts located in the Fresno area of central California.
http://www.cvafresno.org

Barnard-Seyfert Astronomical Society
Amateur astronomy club based in Nashville, TN; founded in 1928; organizes the annual Tennessee Star Party
http://bsasnashville.com

Bucks-Mont Astronomical Association (BMAA)
Holds monthly meetings and hosts public StarWatches, StarParties, and an annual StarFest weekend event at a dark-sky location. Based in Southeastern Pennsylvania.
http://www.bma2.org

Catskills Astronomy Club
Amateur astronomy club located in Sullivan County, New York State.
http://www.catskillsastro.org

Central Arkansas Astronomical Society (CAAS)
Located on seven acres northwest of Little Rock, Arkansas. Members range from novice to skilled observers.
http://www.caasastro.org

Midlands Astronomy Club, Inc.
Find a calendar of events and photos. The club serves the Columbia area in South Carolina.
http://midlandsastronomyclub.org

Mobile Astronomical Society (MAS)
Viewing under Dixie skies. Amateur group in Mobile, Alabama.
http://members.aol.com/rmollise

Sidewalk Astronomers
Exposing the public to amateur astronomy with telescopes on city sidewalks since 1968. Chapters in San Francisco, Los Angeles, and Monmouth, Oregon.
http://sidewalkastronomers.com

Southern Tier Astronomy Recreation Society
Promotes stargazing, educates about light pollution. Offers public star parties, workshops and astronomy classes.
http://www.upstateastro.org/stars/stars.html

American Association of Variable Star Observers (AAVSO)
The AAVSO is the largest variable star observers' organization in the world, serving amateur and professional astronomers since 1911.
http://www.aavso.org

American Meteor Society
Encourages and supports research activities of both amateur and professional astronomers in the field of Meteor Astronomy - meteors, meteor showers, meteoric fireballs, and related meteoric phenomena.
http://www.amsmeteors.org

Ames Area Amateur Astronomers
Amateur astronomy club in Ames, Iowa; operates the McFarland Park Observatory and sponsors the Iowa Star Party.
http://www.amesastronomers.org

Arkansas Oklahoma Astronomical Society
A registered not-for-profit organization dedicated to raising the public's awareness about the science of astronomy and to increasing the application of astronomical science in education.
http://www.aoas.org

Planetary Observers (ALPO)
An educational organization that provides instruction in proper observing techniques, collects and compiles amateur observations and provides them to the professional community.
http://www.lpl.arizona.edu/alpo

Astronomical Society of the Pacific (ASP)
Founded in Northern California in 1889, The ASP is one of the leading astronomy education organizations in the world. The Society includes professional and amateur astronomers, educators, and interested laypeople.
http://www.astrosociety.org

Astronomical League
Composed of over 240 member societies across the United States, the AL promotes interest in amateur astronomy through a variety of programs including observing clubs, educational programs, and the annual Astronomy Day project.
http://astroleague.org

Calumet Astronomical Society
Founded in 1975 for the purpose of pursuing the study of astronomy and promoting the education of astronomy and space science in the Calumet, Indiana area.
http://www.casonline.org

Champaign-Urbana Astronomical Society
An amateur society devoted to the promotion of astronomy and enjoyment of the night skies.
http://www.prairienet.org/cuas

Delmarva Stargazers Club
Dedicated to promoting amateur astronomy in the Delmarva, Deleware area; works with local schools, libraries, and scouting organizations to provided both classroom and observing opportunities for area youth; hosts regional star parties and seminars.
http://delmarvastargazers.org

Eastbay Astronomical Society
Science Center in Oakland, California.
http://www.eastbayastro.org

Eastside Astronomical Society
this amateur astronomy club is based in Seattle's Eastside area.
http://www.eastsideastro.org

Evansville Astronomical Society
A non-profit organization founded in 1952, dedicated to the advancement of amateur astronomy in the Evansville, Indiana area.
http://www.geocities.com/astronomy_eas/

Capital Area Astronomy Association
Based Potterville, Michigan, CAAA operates Fox Park Public Observatory, one of the most advanced public observatories in the nation. It hosts public education activities, comet watches, meteor observing, and frequent observatory public nights.
http://www.foxobservatory.org

Fremont Peak Observatory Association
The only California State Parks cooperative association devoted to interpreting astronomy to the public, the FPOA operates an observatory in the Fremont Peak State Park in San Benito County.
http://fpoa.net

Grand Rapids Amateur Astronomical Association
An amateur society promoting astronomy in the West Michigan area; owns and operates the James C. Veen Observatory near Lowell, MI.
http://www.graaa.org

Hawaiian Astronomical Society
A non-profit organization founded in 1949 and dedicated to promoting amateur astronomy in Hawaii; affiliated with the Western Amateur Astronomers.
http://hawastsoc.org

Lake County Astronomical Society
A society of amateur astronomers and enthusiasts in Lake County, Illinois.
http://www.lcas-astronomy.org

Longmont Astronomical Society
A non-profit amateur astronomy club founded in 1987 in Longmont, Colorado; now has over 100 members.
http://laps.fsl.noaa.gov/cgi/albers_las.homepage.cgi

Los Angeles Astronomical Society
Founded in 1926, LAAS is the oldest astronomical society in southern California, and has over 350 members.
http://www.laas.org

Louisville Astronomical Society
LAS is an organization of individuals interested in various facets of Astronomy, based in Louisville, Kentucky.
http://www.louisville-astro.org

Mountain Skies Astronomical Society
A non-profit organization, MSAS develops and maintains the MSAS Astronomy Village facility, maintains a lender library of science resources, provides educational programs for K-12 students and the general public, and supports graduate level research for five universities.
http://www.mountain-skies.org

New Mexico Tech Astronomy Club
Based in Socorro, New Mexico; associated with New Mexico Tech, one of the top schools in the country for astronomy and astrophysics, and home of the NRAO's Array Operations Center, which controls the VLA and the VLBA radio telescopes.
http://www.nmt.edu/~astro/

Odyssey Astronomy Club
An organization of amateur astronomers iinterested in Observational Astronomy and in sharing their knowledge with anyone wishing to learn; based in Wanette, Oklahoma.
http://hometown.aol.com/orion2c

Oil Region Astronomical Society
Formerly the Venango County Astronomy Club, this group formed in Northwest Pennsylvania in March 1991 to share their equipment and knowledge of the stars in an effort to promote the fundamentals of astronomy and space science.
http://www.oras.org

Oklahoma City Astronomy Club
Formed in 1958, and maintaining an average membership of 75, this club hosts the annual Okie-Tex Star Party, which is consistently rated as one of the Top Ten star parties in the nation.
http://www.okcastroclub.com

Omaha Astronomical Society
Founded in 1962, OAS boasts nearly 100 active members and an established observatory facility near Weeping Water, Nebraska. OAS co-sponsors the annual Nebraska Star Party with the Prairie Astronomy Club.
http://www.omahaastro.com

The Planetary Society
Founded in 1980 by Carl Sagan, Bruce Murray, and Louis Friedman to encourage the exploration of our solar system and the search for extraterrestrial life, the Planetary Society is the largest space interest group on Earth, with more than 100,000 members from over 140 countries.
http://planetary.org

Polaris Observatory Association
A scientific not-for-profit organization with a private observatory in Lockwood Valley, California.
http://www.frazmtn.com/~polaris/

Ryerson Astronomical Society
That's an actual quote.
http://astro.uchicago.edu/home/web/RAS

San Francisco Amateur Astronomers
Founded in September 1952, the SFAA is an association of people who share a common interest in astronomy and other related sciences.
http://www.sfaa-astronomy.org

San Jose Astronomical Association
Amateur astronomy club based in San Jose, California; hosts the annual CalStar (California Star Party)
http://www.sjaa.net

San Mateo County Astronomical Society
Since 1960, the SMCAS has been open to all people who have an interest in astronomy. Monthly meetings are held at the College of San Mateo Planetarium.
http://bob-black.home.att.net/smas.htm

Saint Louis Astronomical Society
SLAS is an organization of amateur astronomers in the St. Louis, Missouri area.
http://www.slasonline.org

Sangamon Astronomical Society
Amateur astronomy club in Sangamon, Illinois; sponsors of the annual Illinois Dark Skies Star Party.
http://www.sas-sky.org

Smoky Mountain Astronomical Society
The SMAS is a not for profit hobby organization serving the greater East Tennessee area, promoting both the study and enjoyment of astronomy by its members, and the understanding and appreciation of astronomy by the community.
http://www.smokymtnastro.org

Southern Maryland Astronomical Society
A group of amateur astronomers in the Nanjemoy, Maryland area, the SMAS jointly operates an observatory at the Nanjemoy Creek Environmental Education Center (NCEEC) with the Charles County Board of Education.
http://www.smas.us

Southern Nights Astronomical League of Florida
Southern Nights provides a forum for all Florida astronomical organizations, planetaria, observatories, and educators to coordinate efforts within the State of Florida.
http://groups.yahoo.com/group/Southern_Nights

Southwest Montana Astronomical Society
Founded in Bozeman, MT in 1993, the SMAS and its 100+ members promote amateur astronomy through a variety of programs and special events. SMAS sponsors the annual Montana Astro Fair, as well as the Montana Starwatch.
http://www.montana.edu/smasweb

Students for the Exploration and Development of Space
Founded in 1980 at MIT and Princeton, SEDS is an international group of students with chapters throughout the Americas, the UK, and the Middle East, working to promote the study and use of space.
http://www.seds.org

Texas Astronomical Society of Dallas
Chartered in 1955 to promote the study of astronomy and related fields and to pursue observation and construction of instruments as a hobby, TAS now has over 300 members and an impressive observatory facility near Atoka.
http://www.texasastro.org

Albuquerque Astronomical Society
TAAS is a non-profit organization devoted to astronomy. It works with the University of New Mexico and assists with the operation of the UNM Observatory. TAAS operates its own observatory about an hour from Albuquerque.
http://www.taas.org

Tucson Amateur Astronomy Association
Founded in 1954, the TAAA promotes amateur astronomy in the Tuscon, Arizona area through star parties and other programs. TAAA currently boasts over 300 members.
http://www.tucsonastronomy.org

Wabash Valley Astronomical Society
WVAS has promoted the science and hobby of astronomy in the Greater Lafayette, Indiana area since 1971.
http://www.stargazing.net/wvas

Astronomical Society of Greenwich
Amateur astronomy club in Greenwich, Connecticut; operates the Bowman Observatory.
http://www.geocities.com/astrogreenwich/

Tallahassee Astronomical Society
Located in Tallahassee, Florida, TAS is a group of friendly people who have a common interest in astronomy and wish to share that interest with the general public.
http://www.stargazers.org

Alachua Astronomy Club
Located in Gainesville, Florida, AAC is a publicly supported, not for profit organization of people who have a common interest in astronomy.
http://www.floridastars.org

Alamogordo Astronomy Club
The Alamogordo Astronomy Club in Alamogordo, New Mexico, is only 20 minutes from Cloudcroft, New Mexico, one of the premier sites for Amateur Astronomy. Sponsors the annual White Sands Star Party.
http://www.zianet.com/aacwp/

Cumberland Astronomy Club
A group of amateur astronomers in the Cumberland, Maryland area, meeting at the La Vale Public Library and occasionally at the Frostburg State University Planetarium.
http://antoine.frostburg.edu/phys/luzader/cac

Astronomical Society of East Texas
An astronomy club dedicated to the pursuit and promotion of amateur astronomy in the East Texas region; headquartered in Tyler, Texas.
http://aset.tamu.edu

Astronomical Society of the Toms River Area
An amateur astronomy club associated with The Robert J. Novins Planetarium at Ocean County College, Toms River, New Jersey.
http://astra-nj.org

Santa Cruz Astronomy Club
An amateur astronomy club serving Santa Cruz County, California and neighboring areas; emphasizes Observational Astronomy, family participation and public enjoyment of the wonders of the starry night.
http://astro.santa-cruz.ca.us

Stockton Astronomical Society
An amateur astronomy club based in Stockton, California, the SAS offers lecture and tutorial programs at monthly meetings, public viewing opportunities at local schools and parks, and special astronomical events.
http://astro.sci.uop.edu/~sas/

National Capital Astronomers
Founded in 1937, The NCA is a non-profit public service corporation dedicated to advancing interest and support of space technology, astronomy, and related sciences in the Bethesda, Maryland area.
http://capitalastronomers.org

Central Maine Astronomical Society
Based in Newcastle, Maine, the CMAS is an active and growing club interested in observing the night sky, building and understanding telescopes and involving the public in the appreciation of the science of astronomy.
http://clary.gwi.net/cmas/

Warsaw Astronomical Society
Based in the Warsaw, Indiana area, the WAS provides opportunities for individuals interested in astronomy to share their interest with others. Operates the Camp Crosley/WAS observatory near North Webster.
http://clubs.kconline.com/was

Olympic Astronomical Society
An amateur astronomy club based in Keyport, Washington.
http://oas.home.donobi.net

University of Arizona Astronomy Club
A student-run amateur astronomy club based at the University of Arizona. Operates the Tumamoc Hill Observatory just west of Tucson.
http://ethel.as.arizona.edu/astro_club/

Everglades Astronomical Society
Amateur astronomy club based in Naples, Florida; observes from dark sky sites in the Fakahatchee Strand.
http://gator.naples.net/clubs/eas

Back Bay Amateur Astronomers
"
http://groups.hamptonroads.com/bbaa/

Popular Astronomy Club
An amateur astronomy club based in Rock Island, Illinois, meeting at Augustana College's John Deere Planetarium. Operates PACMO, a mobile domed observatory designed for public outreach.
http://pacastronomy.50megs.com

Oglethorpe Astronomical Association
Based in Savannah, Georgia, the OAA has been a continuously active amateur astronomy club for over 30 years.
http://home.g-net.net/~oaa/

Astronomical Society of Long Island
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http://www.asliclub.org

St. Petersburg Astronomy Club
An amateur astronomical society based in St. Petersburg, Florida with over 350 members, the SPAC has been meeting continuously since 1927.
http://home1.gte.net/hoffmanc/

Utah Valley Astronomy Association
Based in Lindon, Utah, UVAA is a group of amateur astronomers in the Utah Valley area with over 120 members and no dues.
http://www.uvaa.org

Museum Astronomical Resource Society
An amateur astronomy club sponsored by the Museum of Science and Industry (MOSI), in Tampa, Florida.
http://members.aol.com/MARSAstro/

Lackawanna Astronomical Society
Promoting amateur astronomy in Northeast Pennsylvania. Based in Clarks Summit, PA. Supports operations at Keystone College's Thomas G. Cupillari Astronomical Observatory.
http://members.aol.com/SabiaJohn/LAS.html

Fort Wayne Astronomical Society
A not-for-profit organization incorporated in 1959, the FWAS pursues public education in Astronomy and related sciences in the Fort Wayne, Indiana area. It owns and operates an observatory in Fox Island County Park.
http://members.aol.com/theFWAS/

Black River Astronomical Society
Established in 1949, the BRAS is an amateur astronomy club serving Lorain County, Ohio and the surrounding area.
http://junior.apk.net/~arstar50/BlackRiver.index.html

San Angelo Amateur Astronomy Association
Formed in January 1962 in San Angelo, the SAAAA has a primary focus in optical astronomy, but other activities such as radio astronomy and astrophotography are also currently pursued.
http://members.aol.com/warhawk57/saaaa.html

Chester County Astronomical Society
With the cooperation of the West Chester University, the CCAS was formed in Chester County, Pennsylvania in September of 1993 to promote interest in astronomy through meetings, speaker programs and observations.
http://www.ccasastro.org

Night Sky 45 Astronomy Club
Night Sky 45 is a non-profit, volunteer organization dedicated to promoting the enjoyment and education of astronomy.Membership is open to the public.
http://www.nightsky45.com/

Northwest Suburban Astronomers
A group of amateur astronomers from the Northwest suburbs of Chicago, the NSA has a membership of about 150.
http://www.stargazing.net/nsaclub

Highlands Stargazers Astronomy Group
Founded in 1989, the HSAG is a group of amateur astronomers in Central Florida's Highlands County, about 80 miles south of Orlando.
http://highlandsstargazers.8m.net/

Middle Tennessee Astronomical Society
The MTAS is a group of dedicated amateurs who use their knowledge and love of the sky to encourage interest in astronomy and the sciences throughout Middle Tennessee.
http://mtas.tnsky.com

Westchester Amateur Astronomers
Amateur astronomical group in Westchester County, NY, serving the amateur community since 1983.
http://www.westchesterastronomers.org

Kansas Astronomy Village
Formerly the Kansas Astrophotographers and Observers Society, this group has developed a 20-acre observing facility 70 miles southwest of Kansas City that is now home to the annual Great Plains Star Party.
http://astronomyvillage.org

Amateur Astronomers Association of New York
Based in New York City, the AAA of NY promotes the study of the science of Astronomy in the Big Apple. The Association provides many star parties and events, and sponsors the AAA Lecture Series at the American Museum of Natural History.
http://www.aaa.org

San Antonio Astronomical Observers Group
Focusing on the amateur astronomer interested in observing the night skies with others who share their interest. Family-focused casual observing.
http://www.sanantonioastronomical.org

Central Pennsylvania Observers
Amateur astronomy club in State College, PA; organizers of the annual Black Forest Star Party.
http://www.cpoclub.org

University Lowbrow Astronomers
McMath telescope, have monthly meetings and publish an excellent newsletter.
http://www.umich.edu/~lowbrows/

Seven Ponds Astronomy Club
Affiliated with (and meeting at) the Seven Ponds Nature Center in Dryden, Michigan, the SPAC requires no dues--just bring scopes and snacks!
http://geocities.com/jelines

Northeast Kansas Amateur Astronomers' League
Since 1978, NEKAAL has introduced hundreds of people to astronomy through educational presentations, star parties, and the club's internationally-known Farpoint Observatory.
http://nekaal.coldstonelabs.org/

Central Florida Astroguides
Dedicated to helping others learn and enjoy astronomy as a hobby.
http://doctorlock.net

Texas Lake Whitney Astronomy Club
Contain information on star parties, events, awards, books, and photos.
http://whitneyastro.dnswh.com/

Mid-Hudson Astronomy Association
Based in New Paltz, New York, the MHAA promotes amateur astronomy in the Hudson Valley area through lectures, public events, and star parties; sponsors the Hudson Valley Summer Star Party series.
http://mhaa.whodeanie.com/