Acorn Jr. Science Club
(Website)

Mena

AR

71953

Adirondack Public Observatory
(Website)

Tupper Lake

NY

12986

Alachua Astronomy Club
(Website)

Gainesville

FL

Alamogordo Astronomy Club
(Website)

Alamogordo

NM

88310

Aldrich Astronomical Society, Inc.
(Website)

Paxton

MA

01612

Amarillo Astronomy Club
(Website)

Amarillo

TX

79106-1759

Amateur Astronomers Association of NY
(Website)

New York

NY

10007

13 Events

Amateur Astronomers Association of Pittsburgh
(Website)

Pittsburgh, PA

PA

15212

1 Event

Amateur Astronomers Group
(Website)

Alamogordo

NM

Amateur Astronomers of Jackson
(Website)

Grass Lake

MI

49240

Amateur Astronomers, Inc.
(Website)

Garwood

NJ

07027-0111

2 Events

Amateur Observers' Society of NY
(Website)

East Meadow

NY

11554

Amateur Telescope Makers of Boston, Inc.
(Website)

Harvard

MA

01451

1 Event

Ames Area Amateur Astronomers
(Website)

Ames

IA

50014

Antelope Valley Astronomy Club
(Website)

Lancaster

CA

93539

AquaSoft Astronomy Club

Ellensburg

WA

98926

Arkansas Oklahoma Astronomical Society
(Website)

Fort Smith

AR

72903

Arrowhead Astronomical Society
(Website)

Duluth

MN

55812

Astral Astronomers
(Website)

Plano

TX

75074

Astro Soc of Pacific Club
(Website)

San Francisco

CA

94112

20 Events

Astronomers of Verde Valley
(Website)

Cottonwood

AZ

86326

Astronomical Association of Northern California
(Website)

Oakland

CA

94619

6 Events

Astronomical Association of Southern Illinois
(Website)

Carbondale

IL

62901

Astronomical Outreach Services and Sonora Astronomical Society

Green Valley

AZ

85622

1 Event

Astronomical Society of East Texas
(Website)

Tyler

TX

75701

Astronomical Society of Eastern Missouri
(Website)

Wentzville

MO

63385

Astronomical Society of Greater Hartford
(Website)

New Britain

CT

06050

Astronomical Society of Greenbelt
(Website)

Greenbelt

MD

20770

22 Events

Astronomical Society of Harrisburg
(Website)

Lewisberry

PA

17339

Astronomical Society of Kansas City
(Website)

Kansas City

MO

Astronomical Society of Las Cruces
(Website)

Las Cruces

NM

88003

Astronomical Society of Michigan
(Website)

Plymouth

MI

48170

70 Events

Astronomical Society of Nevada
(Website)

Reno

NV

89557

Astronomical Society of New Haven
(Website)

Bethany

CT

06524

16 Events

Astronomical Society of Northern New England
(Website)

Kennebunk

ME

04043

Astronomical Society of Rowan County
(Website)

Mooresville

NC

28115

Astronomical Society of Southern New England
(Website)

Rehoboth

MA

02769

Astronomical Society of the Palm Beaches
(Website)

West Palm Beach

FL

33405

7 Events

Astronomical Society of the Toms River Area A.S.T.R.A.
(Website)

Toms River

NJ

08754

12 Events

Astronomy Club of Asheville
(Website)

Asheville

NC

28804

29 Events

Astronomy Club of Tulsa
(Website)

Mounds

OK

Astronomy Section, Rochester Academy of Science
(Website)

Rochester

NY

14692

Astronomy.FM
(Website)

Royal Oak

MI

48073

Astronomy4You
(Website)

Anaheim

CA

92807-2937

AstroTerps
(Website)

College Park

MD

20742

3 Events

ASU AstroDevils Astronomy Club
(Website)

Tempe

AZ

85287-6004

12 Events

Atlanta Astronomy Club
(Website)

Sandy Springs

GA

30328

Aurora Astronomical Society
(Website)

Aurora

OH

44202

Austin Astronomical Society
(Website)

Austin

TX

78705

BackyardAstronomy
(Website)

Burbank

CA

91505

Bandelier National Monument Night Sky Team
(Website)

Los Alamos

NM

87544

Barnard Astronomical Society
(Website)

Chattanooga

TN

37411

3 Events

Barnard-Seyfert Astronomical Society
(Website)

Nashville

TN

37215

Bartlesville Astronomical Society
(Website)

Bartlesville

OK

74003

12 Events

Berks County Amateur Astronomical Society
(Website)

Reading

PA

19611

Big Bear Valley Astronomical Society

Big Bear City

CA

92314

2 Events

Big Sky Astronomy Club
(Website)

Kalispell

MT

59901

Birmingham Astronomical Society
(Website)

Alabaster

AL

35007

Black Canyon Astronomical Society
(Website)

Montrose

CO

81402

Black Hawk Astronomy Club

Strawberry Point

IA

Black River Astronomical Society
(Website)

LaGrange

OH

44050

Blue Ridge Astronomy Club
(Website)

Forest

VA

24551

Blue Ridge Astronomy Group
(Website)

Burnsville

NC

28714

Boeing Employees' Astronomical Society
(Website)

Seattle

WA

98168

Brazos Region Astronomy Service Society

Bryan

TX

77805

8 Events

Brazosport Astronomy Club
(Website)

Clute

TX

77531

Brevard Astronomical Society
(Website)

Cocoa

FL

32923

Brighton Astronomy Group
(Website)

Brighton

CO

80601

30 Events

Broken Arrow Sidewalk Astronomers
(Website)

Broken Arrow

OK

Brunswick Astronomy Club
(Website)

Brunswick

OH

44212

Bucks-Mont Astronomical Association
(Website)

Doylestown

PA

18901

Burbank Sidewalk Astronomers
(Website)

Sun Valley

CA

BYU Astronomical Society
(Website)

Provo

UT

84602

Cabarrus County Girl Scouts

Harrisburg

NC

28075

10 Events

Calumet Astronomical Society
(Website)

Griffith

IN

46319-0851

64 Events

Cameron Park Rotary Community Observatory
(Website)

Placerville

CA

95667

Caribbean Astronomical Society

Hormigueros

PR

00660

Carolina Skies Astronomy Club
(Website)

Greenville

NC

27834

5 Events

Carolina Skygazers
(Website)

Rock Hill

SC

29732

Catskills Astronomy Club
(Website)

Liberty

NY

12754

2 Events

Cedar Amateur Astronomers, Inc.
(Website)

Cedar Rapids

IA

52410

Celestial North
(Website)

Greenbank

WA

98253

2 Events

Celestial Observers Guild
(Website)

Skowhegan

ME

04976

Central Appalachian Astronomy Club of West Virginia
(Website)

Clarksburg

WV

26301

Central Arkansas Astronomical Society
(Website)

Little Rock

AR

72211

Central Coast Astronomical Society
(Website)

San Luis Obispo

CA

93405

Central Florida Astronomical Society, Inc.
(Website)

Longwood

FL

32791-7701

Central Missouri Amateur Astronomers
(Website)

Columbia

MO

65201

Central Montana Astronomy Society
(Website)

Simms

MT

59477

7 Events

Central Ohio Astronomical Society
(Website)

Newark

OH

43056

Central Pennsylvania Observers
(Website)

State College

PA

16801

Central Texas Astronomical Society, Incorporated
(Website)

Temple

TX

76502

Central Valley Astronomers
(Website)

Fresno

CA

93740

2 Events

Central Washington University Astronomy Club
(Website)

Ellensburg

WA

98926

Chagrin Valley Astronomical Society
(Website)

Huntsburg

OH

44046

Champaign-Urbana Astronomical Society
(Website)

Champaign

IL

61821-1806

8 Events

Chapel Hill Astronomical and Observational Society
(Website)

Chapel Hill

NC

27514

8 Events

Charlie Elliott Chapter of the Atlanta Astronomy Club
(Website)

Mansfield

GA

30055

6 Events

Charlotte Amateur Astronomers Club
(Website)

Charlotte

NC

28207

Charlottesville Astronomical Society
(Website)

Charlottesville

VA

22902

Chester County Astronomical Society
(Website)

West Chester

PA

19383

Chicago Astronomical Society
(Website)

Chicago

IL

60605-2403

Chippewa Valley Astronomical Society
(Website)

Fall Creek

WI

54742

Chugach Stargazer Society

Anchorage

AK

99501

Cincinnati Astronomical Society
(Website)

Cleves

OH

45002

Cincinnati Observatory Center / Friends of the Observatory
(Website)

Cincinnati

OH

45208

City Lights Astronomical Society for Students
(Website)

Plano

TX

75023

Civil Air Patrol Myrtle Beach MER-SC-084

SURFSIDE BEACH

SC

29587

Clay Center for Science and Technology
(Website)

Brookline

MA

02245

Clemson Area Amateur Astronomers
(Website)

Walhalla

SC

29691

College of Southern Nevada Astronomy Club

North Las Vegas

NV

89030

Colorado River Astronomy Club
(Website)

Blythe

CA

92225

10 Events

Colorado Springs Astronomical Society
(Website)

Colorado Springs

CO

80919

2 Events

Columbia Astronomers

Downey

CA

90242

8 Events

Columbia Memorial Space Center
(Website)

Downey

CA

90242

Columbia University Public Outreach
(Website)

New York

NY

10027

Columbus Astronomical Society
(Website)

Columbus

OH

43216

Community of Humble / Administaff Observatory Society
(Website)

Humble

TX

77396

Cottontail Observatory
(Website)

Sheridan

MT

59754

Council Rock South

Holland

PA

18966

Cumberland Astronomical Society
(Website)

Gallatin

TN

37066

Darien O'Brien Astronomy Club

Lakewood

CO

80232

Decatur Area Astronomy Club
(Website)

Decatur

IL

62521

Delaware Astronomical Society
(Website)

Wilmington

DE

19899-0652

10 Events

Delaware Valley Amateur Astronomers
(Website)

King of Prussia, PA.

PA

19406

Delmarva Stargazers
(Website)

Smyrna

DE

19977

160 Events

Denver Astronomical Society
(Website)

Denver

CO

80210

Des Moines Astronomical Society
(Website)

Des Moines

IA

DescriptiveAstronomy.com
(Website)

Sarasota

FL

34235

Dinosaur National Monument Night Sky Team
(Website)

Jensen

UT

84035

Door Peninsula Astronomical Society
(Website)

Sturgeon Bay

WI

54235

1 Event

Downeast Amateur Astronomers
(Website)

Calais

ME

04619

45 Events

Dudley Observatory & Albany Area Amateur Astronomers
(Website)

Schenectady

NY

12308

7 Events

East Central Minnesota Astronomy Club
(Website)

Mora

MN

55051

23 Events

East Valley Astronomy Club (EVAC)
(Website)

Gilbert

AZ

85234

24 Events

Eastbay Astronomical Society
(Website)

Oakland

CA

94619

1 Event

Eastern Ozarks Astronomical Society
(Website)

Fredericktown

MO

63645

Eastside Astronomical Society
(Website)

Bellevue

WA

98008

Eisenhower Astronomy Club
(Website)

Hopkins

MN

55305

Elmore County 4-H
(Website)

Wetumpka

AL

36092

Embry-Riddle Aeronautical University Astronomy Club
(Website)

Prescott

AZ

86301

Emerald Coast Junior Astronomy Club

Panama City

FL

32405

Escambia Amateur Astronomer's Association
(Website)

Pensacola

FL

32504

Estes Valley Astronomical Society
(Website)

Estes Park

CO

80517

Eugene Astronomical Society
(Website)

Eugene

OR

97401

11 Events

Evansville Astronomical Society
(Website)

Lynnville

IN

47619

2 Events

Everett Astronomical Society
(Website)

Everett

WA

98206

Fargo-Moorhead Astronomy Club
(Website)

Moorhead

MN

56563

Final Frontier Astronomy Society

Pelham

AL

35124

Flint River Astronomy Club
(Website)

Griffin

GA

30224

Florida Community College Astronomy Club

Jacksonville

FL

32205

Florida Keys Astronomy Club

Big Pine Key

FL

43754

Forsyth Astronomical Society
(Website)

Winston-Salem

NC

27130

39 Events

Fort Bend Astronomy Club
(Website)

Stafford

TX

77477

35 Events

Fort Wayne Astronomical Society
(Website)

New Haven

IN

46774

18 Events

Fort Worth Astronomical Society
(Website)

Fort Worth

TX

76107

Fox Park Astronomy Club
(Website)

Potterville

MI

48876

11 Events

Fox Valley Astronomical Society
(Website)

Geneva

IL

60134

Fremont Peak Observatory Association
(Website)

San Juan Bautista

CA

95045

Gallatin High Astronomy Club
(Website)

Gallatin

TN

37066

Geo-Science and Astronomy club

Walnut

CA

91801

Glen Canyon National Recreation Area
(Website)

PAGE

AZ

86040

Gloucester Area Astronomy Club
(Website)

Rockport

MA

01966

Grand Traverse Astronomical Society
(Website)

Traverse City

MI

49684

18 Events

Grants Pass Astronomers
(Website)

Grants Pass

OR

97526

Graveyard Shift Astronomy
(Website)

Auburn

GA

30011

61 Events

Great Basin National Park
(Website)

Baker

NV

89311

Greater Houston Astronomical Coalition

Houston

TX

Greenbrier Valley Astronomy Association

White Suphur Springs

WV

24986

1 Event

Greensboro Astronomy Club
(Website)

Greensboro

NC

27455-1899

Grenada NJROTC

Grenada

MS

38901

H. J. Fowler Observatory
(Website)

Oakland

ME

04963

7 Events

Harford County Astronomical Society
(Website)

Bel Air

MD

21014

Harper Astronomy Club
(Website)

Palatine

IL

60067

29 Events

Hawaiian Astronomical Society
(Website)

Honolulu

HI

96817

Helena Astronomical Society

Helena

MT

59602

Hercules Stargazers

Hercules

CA

High Desert Astronomical Society
(Website)

Apple Valley

CA

92307

3 Events

Hilltopper Astronomy Club
(Website)

Bowling Green

KY

42101

Hinsdale Public Library
(Website)

Hinsdale

IL

60521

2 Events

Houston Astronomical Society
(Website)

Houston

TX

77004

16 Events

Huachuca Astronomy Club of Southeastern Arizona
(Website)

Sierra Vista

AZ

85635

1 Event

Huntsville Amateur Astronomy Society
(Website)

Huntsville

TX

77340

Idaho Falls Astronomical Society
(Website)

Idaho Falls

ID

83402

Imiloa Astronomy Center of Hawaii
(Website)

Hilo

HI

96720

Indiana Astronomical Society
(Website)

Martinsville

IN

46151

Inola AFJROTC Astronomy Club

Inola

OK

74036

9 Events

Iowa County Astronomers
(Website)

Dodgeville

WI

53533

Island County Astronomical Society
(Website)

Oak Harbor

WA

98277

Jackson Hole Astronomy Club
(Website)

Jackson

WY

83001

31 Events

John C. Wells Planetarium @JMU
(Website)

Harrisonburg

VA

22807

John J. McCarthy Observatory
(Website)

New Milford

CT

06776

14 Events

Johnson Space Center Astronomical Society
(Website)

Houston

TX

77058

JUC Astronomy Club

Golden

CO

80401

Junior Astronomy Club of Connecticut

Guilford

CT

06437

Kanawha Valley Astronomical Society
(Website)

Charleston

WV

25314

12 Events

Kansas Astronomical Observers
(Website)

Goddard

KS

67026

Keene Amateur Astronomy Club
(Website)

Keene

NH

03431

Kennedy Space Center Amateur Astronomers
(Website)

Titusville

FL

32780

Kentuckiana Astronomical Society
(Website)

West Point

KY

40177

1 Event

Kern Astronomical Society
(Website)

Bakersfield

CA

93309

Kids Observing Celestial Heavens And Beyond (KOCHAB)
(Website)

Spring Hill

TN

37174

1 Event

Kiski Astronomers
(Website)

Leechburg

PA

15656

Kiwanis Chico Community Observatory
(Website)

Chico

CA

95973

Knoxville Observers
(Website)

Andersonville

TN

37705

Kopernik Astronomical Society
(Website)

Vestal

NY

13850

La Crosse Area Astronomical Society
(Website)

La Crosse

WI

54601

La Salle High School Astronomy Club
(Website)

Pasadena

CA

91107

7 Events

Lake County Astronomical Society
(Website)

Ingleside

IL

60041

Las Vegas Astronomical Society
(Website)

North Las Vegas

NV

89030

Latin School & Chicago Sidewalk Astronomy Club
(Website)

Chicago

IL

60610

Lehigh Valley Amateur Astronomical Society Inc.
(Website)

Allentown

PA

18103

Lima Astronomical Society
(Website)

Lima

OH

45802-0201

12 Events

Litchfield Hills Amateur Astronomy Club
(Website)

Litchfield

CT

06759

Little Thompson Observatory
(Website)

Berthoud

CO

80513

Live Oak High Astronomy Club

Denham Springs

LA

70706

Local Group Astronomy Club of Santa Clarita Valley
(Website)

Santa Clarita

CA

91322

Local Group of Deep Sky Observers
(Website)

SARASOTA

FL

34232