Astronomy Clubs by State

Founded in 1980, serving Auburn University and south-central Alabama with member telescope access, a lending library, dark-sky observing sites, and Astronomical League-affiliated observing programs.

Founded in 1977; holds free monthly public meetings at the Christenberry Planetarium on Samford University's campus and hosts star parties at Oak Mountain State Park for the greater Birmingham metro area.

Named for rocket pioneer Wernher von Braun, this society operates its own planetarium and twin observatories at Monte Sano State Park east of Huntsville. Hosts free public planetarium programs every Saturday evening with telescope viewing afterward.

Amateur astronomy club covering Anchorage and the Mat-Su Valley with a focus on STEM educational outreach and informal stargazing events under Alaska's exceptional dark skies.

Serves the East Valley of greater Phoenix with monthly meetings, public star parties, and observing programs for amateur astronomers of all experience levels.

Serves the Huachuca Mountains area of southeastern Arizona near some of the state's darkest skies and within reach of world-class professional observatories on nearby mountain peaks.

Founded in 1948; one of Arizona's oldest clubs, conducting public star parties and educational star tours for schools and community groups throughout the Phoenix metro area.

Community astronomy club serving the Prescott highlands of central Arizona, taking advantage of dark skies at elevation for public and member observing sessions.

Active club with monthly public meetings at the University of Arizona and two dark-sky observing sites for members; conducts regular outreach to schools, scout groups, and conventions under world-class southern Arizona skies.

Founded in 1971; member-owned nonprofit that owns and operates the River Ridge Observatory near Lake Maumelle, with active observing programs and public outreach for central Arkansas.

Community astronomy club serving California's North Coast (Humboldt County) with public stargazing events and educational programming under the dark coastal skies of far northern California.

Founded in 1924, one of the oldest astronomy clubs in the West; volunteers support Chabot Space & Science Center's three historic telescopes and run one of the nation's longest-running telescope-makers' workshops.

Serves Kern County and the southern San Joaquin Valley with observing sessions and monthly meetings for amateur astronomers near the southern Sierra Nevada.

Amateur astronomy club in far Northern California near Mount Shasta, benefiting from exceptionally dark skies and clear mountain air for deep-sky observing year-round.

Founded in 1967 with roughly 800 members; operates a dark-sky observatory site near Anza with a 22-inch Cassegrain and hosts monthly beginner courses and meetings at Chapman University.

Serves the Inland Empire with monthly meetings, observing programs, and participation in the annual Riverside Telescope Makers Conference (RTMC), a landmark event in amateur astronomy.

Serves the Sacramento Valley region with monthly meetings, public star parties, and dark-sky observing programs in the Central Valley and Gold Country foothills.

Amateur astronomy club serving the Inland Empire with regular observing sessions, monthly meetings, and public outreach events in the San Bernardino and Riverside county region.

Established in 1963 with nearly 800 members; owns the Tierra del Sol 10-acre dark-sky site in rural East San Diego County with a 22-inch reflector and 8-inch refractor available to trained members.

Serves the San Francisco Peninsula with monthly meetings, public astronomy programs, and outreach to schools and community groups in San Mateo County.

Serves the South Bay communities of Los Angeles County with monthly meetings and public star parties for amateur astronomers along the Southern California coast.

Amateur astronomy club for the Temecula Valley region of inland Southern California, offering member observing sessions and public outreach events near the Anza-Borrego dark-sky corridor.

Small amateur astronomy club serving the Tulare and Central Valley area of California with community observing sessions and outreach events.

Serves Ventura County and neighboring areas with public star parties and member observing programs under Southern California skies.

Serves western Colorado near Black Canyon of the Gunnison National Park, one of the region's darkest-sky areas; hosts star parties and public astronomy outreach events.

Serves the Pikes Peak region with monthly meetings, public star parties, and dark-sky observing sessions for amateur astronomers at altitude on the eastern Front Range.

One of the major astronomy clubs in the Rocky Mountain region; serves the Denver metro area with monthly meetings, public programs, and dark-sky observing events at sites east and west of the city.

Amateur astronomy organization operating a public observatory in the high-altitude Gunnison Valley of western Colorado, which holds some of the state's darkest skies.

Founded in 1987; community astronomy club for the Boulder/Longmont corridor of Colorado's Front Range with monthly meetings and public observing events.

Founded in 1994; hosts monthly public meetings at the Fort Collins Museum of Discovery and outreach events at dark-sky sites including Rocky Mountain National Park and Horsetooth Mountain.

Founded in 1951 as the Central Connecticut Amateur Astronomers; holds monthly public meetings at Wesleyan University's Van Vleck Observatory and hosts free public observing nights throughout the year.

Serves the Litchfield Hills region of northwestern Connecticut with monthly meetings and dark-sky observing sessions under the relatively rural skies of the state's northwest corner.

Serves the coastal Connecticut communities east of New Haven with monthly gatherings and observing sessions for amateur astronomers along Long Island Sound.

Founded in 1975; operates the Rolnick Observatory housing a 25-inch Obsession telescope (the largest in Connecticut available to the public) and holds free public viewing nights every Wednesday.

Founded in 1956 with over 100 members; holds monthly public meetings at the Mount Cuba Astronomical Observatory in Greenville and hosts regular star parties across Delaware.

Long-established Washington DC astronomy club offering sidewalk astronomy events across the city, free telescope-making workshops (running continuously since World War II), and school and scout outreach.

Serves Palm Beach County with regular observing sessions, public star parties, and educational astronomy programming for the South Florida community.

Serves Brevard County on Florida's Space Coast with monthly meetings, public star parties, and observing events complemented by the area's rich spaceflight heritage.

Active club serving the greater Orlando area with monthly meetings, public star parties, and astronomy education programs for residents of central Florida.

Serves Pensacola and the Florida Panhandle with public star parties, educational programs, and monthly gatherings for amateur astronomers in the westernmost tip of the state.

Serves Collier County and Southwest Florida with public star parties and astronomy education programs near the dark skies of the Big Cypress and Everglades National Park.

Specialized club for deep-sky observers in the Tampa Bay and Bradenton area, focusing on visual observing of galaxies, nebulae, and star clusters.

Serves Ocala and north-central Florida with observing sessions near the dark skies of the Ocala National Forest and monthly educational meetings.

Serves Jacksonville and northeast Florida with monthly meetings, public star parties, and outreach programs for schools and community organizations.

Serves Lee County and the Fort Myers area of Southwest Florida with observing sessions, monthly meetings, and public astronomy outreach events.

The primary astronomy club for Florida's capital region; hosts monthly meetings and public stargazing events for amateur astronomers in the Big Bend area.

The primary amateur astronomy club for the Atlanta metro area, welcoming observers of all experience levels to monthly meetings, astrophotography sessions, and public outreach events.

Serves south metro Atlanta and the Flint River corridor with monthly meetings, dark-sky observing sessions west of Griffin two to four times a month, and public astronomy events.

Founded in 1949; affiliated with the Astronomical League and NASA Night Sky Network; hosts three free public star parties per lunar month and maintains a dark-sky members-only site on Oahu.

The primary astronomy club for the Treasure Valley; hosts monthly meetings, public star parties, and dark-sky observing events for Boise-area amateur astronomers.

Serves eastern Idaho with monthly meetings, public observing events, and educational outreach for amateur astronomers in the Snake River Plain region.

Amateur astronomy club for the Pocatello and Bannock County area, hosting monthly meetings and observing sessions under the dark skies of southeastern Idaho.

Serves the University of Illinois community and east-central Illinois with monthly meetings, public star parties, and astronomy education programs.

Founded in 1862, the oldest astronomical society in the Western Hemisphere; holds monthly public meetings at the Adler Planetarium and carries a tradition of science education spanning more than 160 years.

Serves the Fox Valley communities of Batavia, Geneva, St. Charles, and Elburn with monthly meetings, public observing, and outreach events in the western Chicago suburbs.

Founded in 1973 in Chicago's western suburbs with over 200 members; active observing programs, astrophotography group, and public outreach events throughout DuPage County.

Amateur astronomy club serving the northwest suburbs of Chicago with monthly meetings, observing sessions, and public outreach programs for the Cook and Lake County communities.

Serves central Illinois from the Illinois River Valley with monthly meetings, public star parties, and educational programs for the Peoria and Tri-Cities region.

Long-established amateur astronomy club in northwestern Illinois serving the Galesburg and Quad Cities region with monthly meetings and observing events.

Serves the Rockford metropolitan area of northern Illinois with monthly meetings, public star parties, and astronomy education programs for the Rock River Valley.

Serves the Bloomington-Normal area of central Illinois with monthly meetings, outreach events, and observing sessions for amateur astronomers.

Serves southwestern Indiana with monthly meetings, public star parties, and educational outreach for amateur astronomers in the tri-state border region of Indiana, Illinois, and Kentucky.

Serves the Fort Wayne and northeast Indiana region with monthly meetings, observing sessions, and public astronomy education programs.

The state's flagship amateur astronomy organization; provides member access to the historic Goethe Link Observatory and hosts monthly public lectures featuring professional astronomers for central Indiana.

Amateur astronomy club for the Ames and Iowa State University community, hosting monthly meetings and observing events for amateur astronomers in central Iowa.

Hosts public and private group events at the Eastern Iowa Observatory and Learning Center at Palisades-Dows Preserve; serves the Cedar Rapids Corridor area of eastern Iowa.

Active club operating the Ashton Observatory in Jasper County; hosts hybrid monthly meetings at UNO's Durham Science Center and public star parties for central Iowa.

Founded in 1924 with nearly 400 members; owns and operates the Powell Observatory in Louisburg, KS, housing one of the largest amateur-accessible telescopes in the region.

Joint University of Kansas and community organization active for over 50 years; promotes astronomy education and public outreach in Lawrence and the Douglas County area.

Wichita-based club dedicated to the aesthetic and intellectual enjoyment of observational astronomy; holds monthly meetings and star parties for the south-central Kansas region.

Serves Topeka and northeast Kansas with monthly meetings, public star parties, and educational astronomy programs for members and the general public.

Serves the Lexington and Bluegrass region with monthly indoor meetings at the University of Kentucky and public observing sessions at Raven Run Nature Sanctuary.

Founded October 24, 1933; a charter member of the Astronomical League and one of the oldest continuously operating amateur astronomy societies in the United States, serving the Louisville metro area.

Founded in 1981 with approximately 95 members; promotes amateur astronomy in the Baton Rouge area through monthly meetings, public observing nights, and educational programs.

Founded in 1959 with roughly 130 member families spanning southeastern Louisiana and southern Mississippi; supports the largest public observatory in the greater New Orleans area.

One of the oldest continuously meeting astronomy clubs in the US, active since 1959 (67+ years); serves the Shreveport-Bossier City area of northwest Louisiana and neighboring Texas.

All-volunteer nonprofit founded in 1982 promoting public awareness of astronomy in southern Maine and New Hampshire through public observing programs and school outreach.

Serves the Penobscot Bay and mid-coast Maine region with monthly meetings and year-round observing events under some of New England's darkest skies.

Non-profit dedicated to public outreach and education in astronomy for the southern Maine coast; monthly meetings often feature professional scientists and amateur astronomy topics.

Serves the Cumberland and western Maryland area with observing sessions under the dark skies of the Allegheny Mountains near the West Virginia border.

Over 350 members serving Howard County and the greater DC/Maryland/Virginia area; hosts monthly meetings, public star parties, and community outreach events throughout the Baltimore-Washington corridor.

Serves the tri-state region where Maryland, Pennsylvania, and West Virginia meet, with monthly meetings and public observing events in the Hagerstown and Cumberland Valley.

Bringing the universe to Carroll County since 1984; holds monthly meetings at Bear Branch Nature Center and public observing sessions for the Westminster area of north-central Maryland.

Founded in 1934 with the cooperation of Harvard's Harlow Shapley; one of New England's oldest and largest general-interest astronomy clubs, maintaining a clubhouse, workshop, and observing field in Westford.

Founded in 2003 as a lightly organized group for amateur astronomers on Cape Ann, hosting informal observing sessions and monthly meetings on Massachusetts' scenic North Shore.

Established in March 1989 for amateur astronomers on Massachusetts' North Shore; monthly meetings and observing events serving Essex and Middlesex County communities.

Serves the South Shore of Massachusetts (Plymouth County area) with monthly meetings and public astronomy programs for the communities south of Boston.

The oldest astronomy organization in Michigan; hosts monthly meetings, public observing events, and educational programs for southwestern Michigan.

Serves Oakland County and the northern Detroit metro suburbs with monthly meetings, public star parties, and outreach events for Michigan's populous Oakland County.

Serves the Holland and Lake Michigan shoreline communities of west Michigan with public observing events and monthly meetings for the lakeshore region.

Founded in 1961; one of Michigan's oldest and largest clubs with hundreds of members, operating the Stargate Observatory complex and holding monthly public open houses in the Detroit metro area.

Founded in 1972 with 650+ members; one of the largest and most active amateur astronomy clubs in the US, operating five unique observing sites and hosting countless public events annually.

Serves the Rochester and southeastern Minnesota area with monthly meetings and observing events for amateur astronomers in Minnesota's second-largest city.

The primary amateur astronomy club for the Jackson metro area of Mississippi, hosting monthly meetings and observing sessions for central Mississippi stargazers.

Founded in 1985 as an educational ministry of French Camp Academy; the largest observatory in Mississippi with a 32-inch Dobsonian telescope, located under rare dark skies along the Natchez Trace Parkway.

Serves the eastern Missouri and western St. Louis metro area with monthly meetings, public observing sessions, and educational outreach for amateur astronomers.

Serves the Ozarks region of southwest Missouri with monthly meetings and public star parties, benefiting from the relatively dark rural skies of the Missouri Ozark Plateau.

One of Missouri's premier astronomy clubs; serves the St. Louis metro area with monthly meetings, public star parties, and astronomy education programs.

Serves the Bozeman and Gallatin Valley area of southwest Montana with astronomy meetings and dark-sky observing events under exceptional Big Sky Country skies.

Founded in 1982; supports the Blue Mountain Observatory's public open houses and holds monthly meetings September through June at the Missoula Public Library.

Promotes the science of astronomy for south-central Montana; members come from across the Billings area and surrounding region for observing sessions and educational events.

Non-profit introducing Omaha metro residents to astronomy through hybrid monthly meetings at UNO's Durham Science Center and public observing programs.

Founded in 1961; holds monthly public meetings at Hyde Memorial Observatory in Holmes Park and is dedicated to encouraging the study of astronomy in the greater Lincoln area.

Founded in 1934 by a University of Nevada physics professor; one of Nevada's oldest clubs, supporting astronomy programs and public outreach in Northern Nevada for over 90 years.

Established in 1980; a non-profit under the College of Southern Nevada Planetarium, promoting amateur astronomy and science education in Southern Nevada with monthly meetings and observing sessions.

Serves the Keene and southwest New Hampshire Monadnock region with monthly meetings, public star parties, and astronomy education events.

All-volunteer nonprofit promoting public awareness of astronomy throughout New Hampshire with free public observing sessions, telescope demonstrations, and school and club outreach.

Founded in 1949 with over 400 members; home to Sperry Observatory at Union College, housing a 24-inch Cassegrain and 10-inch refractor—two of the largest amateur-use telescopes on the East Coast. Free public viewing every Friday night.

Serves Ocean County and the Shore communities of central New Jersey with monthly meetings and public astronomy events for the Pine Barrens corridor.

Operates the Paul Robinson Observatory in High Bridge; provides astronomy education, public telescope access, youth observing programs, and AL observing certifications for north-central New Jersey.

Astronomy club serving Monmouth County and the Jersey Shore area with monthly meetings, public star parties, and outreach to schools and community groups.

Serves southern New Jersey with monthly meetings, public star parties, and astronomy outreach programs for the Millville and Cumberland County region.

Over 700 members, one of the largest astronomy clubs in the US; operates the General Nathan Twining Observatory south of Belén with a 16-inch reflector and 22 personal observing pads under premier New Mexico skies.

Co-founded in 1951 by Pluto discoverer Clyde Tombaugh; owns the Walter Haas Observatory at Leasburg Dam State Park and holds monthly dark-sky gatherings and public moongaze events for southern New Mexico.

Serves the Taos and Rio Grande Valley region of northern New Mexico with monthly meetings and observing events under the dark skies of the Sangre de Cristo mountain foothills.

Based in Socorro County near the Very Large Array radio telescope; holds observing sessions under some of New Mexico's darkest skies on the remote Plains of San Agustin.

Serves Rio Rancho and the West Mesa communities of the Albuquerque metro area with monthly meetings and observing events under the dark skies of the Rio Grande corridor.

Founded in 1927; 100% volunteer-run nonprofit sponsoring free public telescope viewing events across the five boroughs, lectures at the American Museum of Natural History, and astronomy courses for members.

Long-established Long Island astronomy club based in Nassau County with monthly meetings and public observing events for New York metro area astronomers.

Serves Long Island's astronomy community with monthly meetings, public observing sessions, and educational programs for amateur astronomers across Nassau and Suffolk counties.

Part of one of New York's oldest learned societies; hosts monthly meetings, public star parties, and educational programs for the Rochester and Finger Lakes region.

The primary amateur astronomy club for western New York, serving the Buffalo-Niagara region with monthly meetings, public star parties, and educational outreach.

Historic observatory and astronomy club on Long Island's North Fork dating to 1927; offers public observing nights and education programs at one of the East Coast's oldest continually operating private observatories.

Serves the Mohawk Valley and central New York with monthly meetings and public astronomy programs, operating the Litchfield Road Observatory near Hamilton College in Clinton.

Serves Westchester County and the New York City northern suburbs with monthly meetings and public astronomy outreach programs at the Westchester Community College Planetarium.

Serves western North Carolina with monthly meetings and public star parties in the Blue Ridge Mountains, taking advantage of dark-sky preserves in the Pisgah National Forest area.

Serves the Wilmington and Cape Fear region of coastal North Carolina with monthly meetings, public star parties, and outreach to the port city and surrounding Coastal Plain communities.

University-area astronomy club serving Chapel Hill and Orange County with monthly meetings, public observing sessions, and educational outreach near UNC-Chapel Hill.

Serves Cleveland County and the southern Piedmont foothills of North Carolina with monthly meetings and public star parties under the relatively dark rural skies near Shelby.

The Triangle's primary astronomy club with monthly public meetings and active star parties; serves the Raleigh-Durham-Chapel Hill Research Triangle metro region.

Based at the University of North Dakota; hosts free community astronomy nights and operates a public observatory with a computer-controlled telescope at Heritage Village in East Grand Forks.

Serves the eastern Cuyahoga County and Chagrin Valley communities southeast of Cleveland with monthly meetings, public star parties, and educational programs.

Founded in 1911, one of the nation's oldest amateur astronomy clubs; owns and operates a dark-sky site near Cleves with multiple large telescopes, maintaining a tradition of public outreach spanning more than a century.

Serves Allen County and west-central Ohio with monthly meetings and public star parties for the Lima and upper Miami Valley region.

The primary astronomy club for the Dayton metro area, serving Greene County and the Miami Valley with public observing sessions and monthly meetings.

Serves the Richland County and Mansfield area of north-central Ohio with monthly meetings and public observing at the Ward O'Neill Observatory near Bellville.

The primary astronomy club for the Toledo metro area and northwest Ohio, with monthly meetings and public observing sessions at dark-sky sites outside the city.

Serves the Tulsa metro area of northeastern Oklahoma with monthly meetings, public star parties, and astronomy education programs for the Green Country region.

Small club serving Bartlesville and Washington County in northeastern Oklahoma with monthly gatherings and public stargazing events near the Oklahoma/Kansas border.

The main amateur astronomy club for the Oklahoma City metro area with monthly meetings, public star parties, and educational outreach for central Oklahoma.

Serves the Eugene-Springfield area and southern Willamette Valley with monthly meetings and public observing programs for Lane County amateur astronomers.

The largest astronomy club in Oregon; holds monthly free public meetings at the Oregon Museum of Science and Industry (OMSI) featuring guest speakers and open to all.

Serves the Medford-Ashland-Talent Rogue Valley region of southern Oregon with monthly meetings and dark-sky observing sessions under the rural skies of the Cascade and Siskiyou foothills.

The primary astronomy club for the Pittsburgh metro area; serves western Pennsylvania with monthly meetings, public observing events, and educational outreach programs.

Serves Lancaster County and the Pennsylvania Dutch Country with monthly meetings, public observing sessions, and educational outreach for central Pennsylvania.

Serves Bucks and Montgomery counties north of Philadelphia with monthly meetings, public observing events, and astronomy education programs for the northern Philadelphia suburbs.

Serves the Penn State University community and Centre County region with monthly meetings and public astronomy programs in the Happy Valley.

Serves Chester and Montgomery counties in the western Philadelphia suburbs with monthly meetings, public star parties, and community outreach events.

Serves Chester County and southeastern Pennsylvania with monthly meetings, public star parties, and school outreach programs for the greater West Chester and Philadelphia region.

Serves the greater Philadelphia suburbs and southeastern Pennsylvania with monthly meetings, public star parties, and educational astronomy programs for all skill levels.

Serves the Oil Heritage Region of northwestern Pennsylvania with monthly meetings and dark-sky observing in one of the less light-polluted areas of the eastern US.

Serves the Altoona and Blair County area of central Pennsylvania with monthly meetings and public observing events under the Allegheny Mountain skies.

Amateur Astronomical Society of Rhode Island with approximately 120 members; operates the historic Seagrave Memorial Observatory in North Scituate, open for free public observing every Saturday night.

Serves the greater Augusta-Aiken CSRA spanning Georgia and South Carolina; meets monthly at the Ruth Patrick Science Education Center on the USCA campus in Aiken.

Serves the Myrtle Beach and Horry County area of South Carolina's Grand Strand coast with monthly meetings and dark-sky observing events along the coastal plain.

Diverse group of amateur astronomers promoting astronomy in the Charleston and South Carolina Lowcountry with public star parties and educational events.

Active for over 50 years, furthering knowledge of astronomy across the South Carolina Midlands through monthly meetings, outreach events, and astrophotography programs.

Founded in 1956; operates Hidden Valley Observatory at 4715 Hidden Valley Road and hosts summer public star parties, supporting all aspects of observational astronomy in the Black Hills of western South Dakota.

Serves the Chattanooga metro area and the Tennessee Valley with monthly meetings, public star parties, and educational astronomy events for all experience levels.

Named for astronomers Edward Emerson Barnard and Carl Seyfert; the primary amateur astronomy club for Nashville and Middle Tennessee, with monthly meetings and public observing events.

Affiliated with Bays Mountain Park and Planetarium in Kingsport; conducts public observing sessions and astronomy outreach leveraging the park's observatory and planetarium facilities.

Founded in 1953; non-profit promoting interest and education in astronomy for the Memphis and Mid-South tri-state region through monthly meetings and community outreach events.

Serves the Knoxville metro area and Great Smoky Mountains foothills; monthly meetings and star parties near some of the darkest skies in the eastern US in the Great Smoky Mountains.

The primary astronomy club for Austin and central Texas, with monthly public meetings, regular star parties at dark-sky sites, and active outreach to the fast-growing Austin metro area.

Serves the Waco and Brazos Valley area of central Texas with monthly meetings, public star parties, and educational outreach for the Heart of Texas region.

Serves Fort Bend County and the southwest Houston suburbs with monthly meetings, public star parties, and astronomy education for the rapidly growing outer Houston metro region.

Serves Fort Worth and Tarrant County with monthly meetings, public star parties, and astronomy education programs for the western Dallas-Fort Worth metroplex.

Founded in 1955; closely affiliated with the George Observatory at Brazos Bend State Park, which houses a 36-inch research telescope among the largest publicly accessible instruments in the US.

Serves the Kingwood and north Houston area with monthly meetings, public observing events, and educational programs for the northern Houston suburbs.

Located in the Texas Hill Country near LBJ National Historical Park; serves the Hill Country region with monthly meetings and dark-sky observing under the exceptionally transparent Hill Country skies.

The primary amateur astronomy club for San Antonio and the surrounding Hill Country region, hosting monthly meetings and public star parties in the Alamo City area.

Serves Lubbock and the South Plains region of West Texas with monthly meetings and public star parties under the notably dark and dry skies of the Texas Panhandle.

The primary amateur astronomy club for the Dallas metro area; hosts monthly meetings, public star parties, and educational outreach for the north Texas region.

The primary astronomy club for the Salt Lake Valley and northern Utah; monthly meetings, public star parties, and access to extraordinary dark-sky sites in the surrounding desert and mountain terrain.

Founded in 1920 by Russell W. Porter; the oldest active telescope-making club in the world and host of the annual Stellafane Convention, the longest-running amateur astronomy gathering in the United States.

Serves Virginia Beach and Hampton Roads with monthly meetings and public star parties near Back Bay National Wildlife Refuge, one of the darker sky areas of coastal Virginia.

Serves the Lynchburg and Blue Ridge Mountains foothills of central Virginia with monthly meetings and dark-sky observing events under the Appalachian skies.

Serves central Virginia near the Blue Ridge Mountains with monthly meetings and public observing events, benefiting from proximity to the dark-sky corridors of Shenandoah National Park.

Serves rural Grayson County and the New River Valley of far southwest Virginia with observing events under some of the darkest skies in the eastern United States.

Over 1,100 members, one of the largest astronomy clubs in the US; serves DC metro Virginia communities with monthly meetings, monthly dark-sky star parties, and extensive public outreach programs.

Serves the Fredericksburg, Stafford, and Rappahannock River valley of northern Virginia with monthly meetings and public astronomy programs for the I-95 corridor communities.

The primary astronomy club for the greater Richmond area; hosts monthly meetings and public star parties at dark-sky sites west of Richmond in Powhatan County.

Serves the Roanoke Valley with monthly meetings and public astronomy events set against the Blue Ridge Mountains in the Star City of the South.

Operates the Battle Point Observatory on Bainbridge Island in Puget Sound; hosts public observing nights and educational programs for the island and greater Kitsap Peninsula community.

Serves Snohomish County and the Everett area north of Seattle with monthly meetings and public astronomy events for the north Puget Sound communities.

Serves Whidbey Island and Island County with monthly meetings and observing events, taking advantage of the Puget Sound islands' relatively low light pollution.

Serves the Kitsap Peninsula and Olympic Peninsula area west of Puget Sound with monthly meetings and observing events for the Bremerton and Silverdale communities.

Founded in 1931 with 450+ members; one of the Pacific Northwest's premier astronomy clubs offering monthly meetings, dark-sky star parties, and extensive public outreach across the Puget Sound region.

Founded as the Amateur Telescope Makers of Spokane before 1932 and renamed in 1967; one of the oldest astronomy clubs in the US, serving eastern Washington and the Inland Northwest.

Serves Whatcom County in Washington's northwest corner near the Canadian border with monthly meetings and observing events under the dark skies of the North Cascades foothills.

Serves the Yakima Valley and central Washington with monthly meetings and dark-sky observing events, benefiting from the dry, clear skies of eastern Washington.

Serves north-central West Virginia with star parties at the WVU Jackson's Mill Airfield dark-sky site and public astronomy education events for the Bridgeport and Clarksburg area.

Non-profit educational organization operating Breezy Point Observatory at Camp Virgil Tate; holds monthly meetings and partners with the Avampato Discovery Museum for public astronomy outreach.

Serves the Eau Claire and Chippewa Valley region of west-central Wisconsin with monthly meetings and public star parties under Wisconsin's rural dark skies.

Small club serving Iowa County and the Driftless Area of southwestern Wisconsin with observing sessions under some of the darkest skies in the state.

Founded circa 1935 and continuously active for over 90 years; monthly meetings and public observing events for the greater Madison and Dane County area.

Founded in 1932 with nearly 400 members; one of the oldest continuously running astronomy clubs in the nation, operating one of the largest amateur club observatories in the world.

Serves the Fox Cities and greater Green Bay area of northeast Wisconsin with monthly meetings and public star parties for the Lake Winnebago and Bay of Green Bay region.

Amateur astronomy and science organization in Ozaukee County north of Milwaukee, promoting science education and public astronomy outreach in Wisconsin's lake-shore communities.

Serves Sheboygan County and the Lake Michigan shoreline of eastern Wisconsin with monthly meetings and public observing events for the lakeshore communities.

Small non-profit of about 20 members; hosts observing events at Bessemer Bend Historical Site and telescope viewing nights at the Casper Planetarium for the Natrona County area.

Founded in December 1986; meets monthly at the Cheyenne Botanic Gardens and offers informal public stargazing on the third Friday of each month for Wyoming's capital city.

Amateur astronomy club for the Jackson Hole valley and Grand Teton National Park area, taking advantage of some of Wyoming's darkest and clearest high-altitude skies.