Name | ZIP | City
|
| 3towers Observatory 0 Tucson |
| 650 Temecula 92592 Temecula, CA |
| A. J. Dyer Observatory of Vanderbilt University 0 Brentwood, TN |
| Alfred Univ. Stull Observatory 0 Alfred, NY |
| Allegheny Observatory 15214 Pittsburgh, PA |
| ALLEGRO 0 Baton Rouge, LA |
| Allen, Texas 0 |
| An Unconventional Observatory 0 Fort Worth, TX |
| Ann Arbor 0 |
| Apache Point Observatory 88349 Sunspot, NM |
| Apache Point-Sloan Digital Sky Survey 0 |
| Apollo Observatory 0 Dayton, OH |
| Arcturus Observatory 0 Whiting, NJ |
| Area 52 Observatory 0 Nashville, AR |
| Arkansas Tech University Observatory 0 Russellville, AR |
| Array for Microwave Background Anisotropy 0 Mauna Loa |
| Ashton-Wildwood Observatory 0 Des Moines, IA |
| Assonet 0 |
| Astronaut Memorial Planetarium and Observatory 0 Cocoa, FL |
| Astronomical Adventures Observatory 0 Flagstaff, AZ |
| Astronomical Research Observatory 61920 Charleston |
| Astrophysical Observatory at the College of Staten 10314 Staten Island, NY |
| Atmospheric Research Observatory Northern Arizona 0 Flagstaff, AZ |
| Ayer Observatory 0 Milton, MA |
| Badlands Observatory 57775 Quinn, SD |
| Bagdad 0 |
| Baldwin Observatory 0 Grand Rapids, MI |
| Ball State University Observatory 0 Muncie, IN |
| Baton Rouge Observatory 0 |
| BCC Observatory 0 Cocoa, FL |
| Beaver Meadow Observatory 0 Java Center, NY |
| Behlen Observatory 0 Lincoln, NE |
| Berkeley Undergrad Radio Astronomy Observatory 0 Berkeley, CA |
| Big Bear Solar Observatory 0 Big Bear Lake, Ca |
| Big Bear Solar Observatory 0 Big Bear City, CA |
| Big Woodchuck Weekend Solar Observatory 0 Pittsburgh |
| Biosphere 2 Observatory 0 |
| Bishop Planetarium & Observatory 0 Bradenton, FL |
| Blaber Observatory 0 Oracle, AZ |
| Black Forest Observatory 0 Colorado Springs, CO |
| Boelcke Observatory 0 Northeast, PA |
| Bok Telescope 0 Kitt Peak, AZ |
| Bowman Observatory 0 Greenwich, CT |
| Bradley Observatory 0 Decatur, Georgia |
| Bradley Observatory 0 Decatur, GA |
| Braeside Observatory 0 Flagstaff, AZ |
| Brainerd 0 |
| BREC, LSU, BRAS Highland Road Park Observatory 0 Baton Rouge, LA |
| Brooks Observatory 0 Toledo, OH |
| Brooks Observatory 48859 Mt. Pleasant, MI |
| Bruce Johnston 0 Flint, MI |
| Buhl Planetarium & Observatory 0 Pittsburgh, PA |
| Burlington 0 Burlington, NJ |
| Burlington remote site 0 Burlington |
| Bush Observatory 0 Albany, MO |
| C. E. K. Mees Observatory 0 Rochester, NY |
| Cahall Observatory 0 Braintree, MA |
| Caltech Submillimeter Observatory (CSO) 96720 Hilo, Hawai*i |
| Camarillo 0 |
| Canada-France-Hawaii Telescope Corp. 0 Kamuela, HI |
| Carbuncle Hill Observatory 0 Greene, RI |
| Catalina Sky Survey 0 |
| Catalina Station 0 Tucson, AZ |
| Catholic University Observatory 0 Washington, DC |
| Cave Creek Observatory 0 Cave Creek, AZ |
| CCFR 0 Irvington, NY |
| Chabot Space & Science Center 0 Oakland, CA |
| Chamberlin field station 0 |
| Chamberlin Observatory 80208 Denver, CO |
| Champaign-Urbana Astronomical Society Observatory 0 Champaign, IL |
| Charles E. Daniel Observatory 0 Greenville, SC |
| Charles S. Morris Observatory 0 North Manchester, IN |
| Chinle 0 |
| Cincinnati Observatory Center 45208 Cincinnati, OH |
| Clark Lake Radio Observatory 0 Clark Lake |
| Cleveland State Community College Observatory 0 Cleveland, TN |
| Clyde W. Tombaugh Observatory 0 Lawrence, KS |
| College of Saint Catherine Astrophysical Observato 0 St. Paul, MN |
| College of the Redwoods Observatory 0 Eureka, CA |
| Collins Observatory, Corning Community College 0 |
| Community College of Rhode Island Observatory 0 Warwick, RI |
| Concordia College Observatory 0 Moorhead, MN |
| CopperHead Ridge Observatory 0 Winston-Salem, NC |
| Cordell-Lorenz Observatory 37383 Sewanee, TN |
| Corpus Christi 0 |
| Cosmologically Significant Mass Oscillation Search 0 Batavia, IL |
| Cottonwood Observatory 0 Ada, OK |
| Crane Observatory 0 Topeka, KS |
| Craven E. Williams Observatory 0 Boiling Springs, NC |
| Crescent Moon Observatory 0 Columbus, IN |
| Custer Institute Observatory 0 Southold, NY |
| Darling Hill Observatory 0 Marcellus NY |
| David J. Raden Observatory 0 Tampa, FL |
| Dayton 0 |
| Dearborn Observatory 60208 Evanston, IL |
| Dearborn Observatory 60208 Evanston, IL |
| Deep Sky Eye Observatory 0 Goodland, KS |
| Deep Space Network (DSS 13) 0 Goldstone, CA |
| Deep Space Network (DSS 14) 0 Fort Irwin, CA |
| Deep Space Network (DSS 15) 0 Goldstone, CA |
| Deep Space Network (DSS 16) 0 Goldstone, CA |
| Deep Space Network (DSS 17) 0 Goldstone, CA |
| Deep Space Network (DSS 23) 0 Goldstone, CA |
| Deep Space Network (DSS 24) 0 Goldstone, CA |
| Deep Space Network (DSS 25) 0 Goldstone, CA |
| Deep Space Network (DSS 26) 0 Goldstone, CA |
| Deep Space Network (DSS 27) 0 Goldstone, CA |
| Deep Space Network (DSS 28) 0 Goldstone, CA |
| Deep Undersea Muon and Neutrino Detector (DUMAND) 0 HI |
| Deer Meadow Observatory 0 Winston-Salem, NC |
| Desert Beaver Observatory 0 |
| Desert Moon Observatory 88012 Las Cruces, NM |
| Don Dillinger*s Garden Shed Obsevatory 0 Snohomish, WA |
| donald dillinger Snohom 98290 |
| Donn Starkey 0 Auburn, IN |
| Doyan Rose Observatory 0 Indianapolis, IN |
| Dr. Phillips CineDome 0 Orlando, FL |
| Drake University 50311 Des Moines, IA |
| Droke Observatory 0 Fayetteville, AR |
| Drum Hill Station 0 Chelmsford, MA |
| Dudley Observatory 0 |
| Eastern College Observatory and Planetarium 0 St. Davids, PA |
| Edinboro University of Pennsylvania Observatory 0 Edinboro, PA |
| Edward Naylor Observatory 0 Lewisberry PA |
| Eileen Collins Observatory 0 Corning, NY |
| Elgin National Watch Co. Observatory 0 Elgin, IL |
| Elmcrest Observatory and Powell Observatory 0 Blue Springs, MO |
| Elsinore 84065 Riverton, UT |
| Emerald Lane Observatory 0 Decatur, AL |
| Emmy Observatory 0 New Paltz, NY |
| Erwin W. Fick Observatory 0 Ames, IA |
| Etscorn Observatory 0 |
| Etters 0 |
| EverStaR Astronomical Observatory 0 Olathe, KS |
| Everstar Observatory 0 Olathe, KS |
| F. M. U. Observatory 0 Florence, SC |
| Fair Oaks Ranch 0 |
| Farpoint Observatory 66423 Eskridge, KS |
| Fitchburg 0 |
| Five College Radio Astronomy Observaory 0 Amherst, MA |
| Five College Radio Astronomy Observatory (FCRAO) 0 New Salem, MA |
| Fleenor Observatory 0 Knoxville, Tennessee |
| Flint 0 |
| Florissant 0 |
| Flower and Cook Observatory 0 Philadelphia, PA |
| Foggy Bottom, Hamilton 13346 Hamilton, NY |
| Foothill College Observatory 0 Los Altos, CA |
| Ford Observatory 0 Wrightwood, CA |
| Ford Observatory 0 Ithaca, NY |
| FountainHills 0 |
| Four Winds Observatory 0 Lake Leelanau, MI |
| Fox Observatory 0 Fort Lauderdale, FL |
| Fox Observatory 0 Potterville, MI |
| Fox Park Public Observatory 0 Potterville, MI |
| Frank P. Brackett Observatory & Millikan Planetari 0 Claremont, CA |
| Fred Lawrence Whipple Observatory 85645 Amado, AZ |
| Freeport McMoRan Observatory and Planetarium 0 Kenner, LA |
| Fremont Peak Observatory 0 San Juan Bautista, CA |
| Frosty Drew Observatory 0 Charlestown, RI |
| Fuertes Observatory 0 Ithaca, NY |
| Furnace Brook Observatory 0 Craston, RI |
| Gemini North Telescope 0 Mauna Kea, HI |
| George Learn Observatory 0 East Stroudsburg, PA |
| George Observatory 77461 Needville, TX |
| Gettysburg College Observatory 0 |
| Glasgow, Missouri 0 |
| Goethe Link Observatory, Brooklyn 47405 Bloomington, IN |
| Golden Pond Planetarium and Observatory 0 Golden Pond, KY |
| Goldendale Observatory 0 Goldendale, WA |
| Goodricke-Pigott Observatory 0 Tucson, AZ |
| Goodsell Observatory 0 Northfield, MN |
| Gordon D. Crowell Astrophysical Observatory 0 Whittier, CA |
| Grant O. Gale Observatory 0 Grinnell, IA |
| Granville 0 |
| Green Bank 0 |
| Green Bank 20m Telescope 0 Green Bank, WV |
| Green Bank 40 ft Telescope 0 Green Bank, WV |
| Green Bank 43m Telescope 0 Green Bank, WV |
| Green Bank Interferometer 0 Green Bank, WV |
| Green Mountain Observatory 0 Williston, VT |
| Griffith Observatory 0 Los Angeles, CA |
| Haggart Observatory 0 Oregon City, OR |
| Haleakala-AMOS 0 |
| Haleakala-NEAT/GEODSS 0 |
| Hard Labor Creek Observatory 0 Atlanta, GA |
| Harry Zacheis Planetarium and Observatory 0 Alamosa, CO |
| Harvard Observatory 0 Cambridge, MA |
| Hastings College Observatory 0 Hastings, NE |
| Hat Creek Radio Observatory 0 Cassel, CA |
| Haystack Observatory 1886 Westford, MA |
| Heinrich Hertz Submillimeter Telescope Observatory 0 Emerald Peak |
| Henry C. Gibson Observatory 0 West Palm Beach, FL |
| Heron Cove Observatory 0 Orcas, WA |
| Hidden Valley Observatory 0 Rapid City, SD |
| High Frequency Active Auroral Research Program (HA 0 Gakona, Alaska |
| High Knoll Observatory 0 Sierra Vista, AZ, some miles O |
| High Point 0 |
| Highland Road Park Observatory 0 Baton Rouge, LA |
| Hildene Observatory 05254 Manchester |
| Hill 0 Fort Lauderdale, FL |
| Hobbs Observatory 54742 Fall Creek, WI |
| Holmes Community College Observatory 0 Goodman, MS |
| Hopkins Observatory 0 Williamstown, MA |
| Hornback-Stuart Observatory 0 Indianapolis, IN |
| Houston 0 |
| Hudson 0 |
| Hummingbird Observatory 0 Antioch, CA |
| Hyde Memorial Observatory 0 Lincoln, NE |
| Ibis Observatory, Manhaatan 0 |
| Illinois Wesleyan Univ. Observatory 0 Bloomington, IL |
| Iowa Robotic Observatory 0 Sonoita, AZ |
| Irvine-Michigan-Brookhaven (IMB), Nucleon Decay 0 Cleveland, Ohio |
| J. I. Holcomb Observatory and Planetarium 0 Indianapolis, IN |
| James and Barbara Moore Observatory 0 Punta Gorda, FL |
| James C. Veen Observatory 0 Lowell, MI |
| James Clerk Maxwell Telescope (JCMT) 0 Mauna Kea, HI |
| James Lipp Observatory 0 San Diego, CA |
| Jefferson Valley Observatory 0 Great Falls, MT |
| Joe Garlitz 0 Elgin, OR |
| John C. Hook Memorial Observatory 0 Terre Haute, IN |
| John H. Witte Observatory 0 West Burlington, IA |
| John J. McCarthy Observatory 06776 New Milford, CT |
| John W. H. Simpson Observatory 0 Princeton, NJ |
| Joint Observatory, for cometary research 0 Socorro, NM |
| Jornada Observatory 0 |
| Jornada Observatory 0 Las Cruces, NM |
| Joseph H. Rogers Observatory 0 Traverse City, MI |
| Judson Boardman Coit Memorial Observatory 0 Boston, MA |
| Junk Bond Observatory 0 Sierra Vista, AZ |
| Junk Bond Observatory 0 Sierra Vista, AZ 10 miles SO |
| Jupiter 0 |
| KAC Observatory 0 Parsonsburg, MA |
| Kanab 0 |
| Kansas Wesleyan University Observatory 0 Salina, KS |
| Keck Observatory 96743 Kamuela, HI |
| Keeble Observatory 0 Ashland, VA |
| Kennon Observatory 0 University City, MS |
| Keystone College Observatory 0 La Plume, PA |
| Kiesel Park Observatory 0 Auburn, AL |
| Kihei-AMOS Remote Maui Experimental Site 0 |
| Kingsburg High Observatory 0 Kingsburg, CA |
| Kitt Peak National Observatory 85726 Kitt Peak, AZ |
| Kitt Peak, McGraw-Hill 0 |
| Kutztown University Observatory 0 Kutztown, PA |
| La Scala Observatory 0 Lafayette, CA |
| Lake Afton Public Observatory 0 Wichita, KS |
| Lake Arrowhead 0 |
| Lake Clear 0 |
| Lake Cucamonga 0 |
| Lake Saint Louis 0 |
| Las Brisas Observatory 0 Colorado Springs, CO |
| Laws Observatory 0 Columbia, MO |
| LBTO 85721 Tucson |
| Leander McCormick Observatory 22903 Charlottesville, VA |
| Leeward Communiity College Observatory 0 Hilo, HI |
| Leuschner Observatory 0 Berkeley |
| Lick Observatory 95140 Mount Hamilton, CA |
| LIGO Hanford Observatory 0 Richland, WA |
| LIGO Livingston Observatory 0 Livingston, LA |
| LimeCreek 0 |
| Lincoln Laboratory ETS, New Mexico 0 |
| Litchfield Observatory 0 Clinton. NY |
| Littlebear Observatory 98053 Redmond |
| Lookum Observatory 0 Munising, MI |
| Los Angeles 0 |
| Lowell Observatory 86001 Flagstaff, AZ |
| Lowell Observatory, Anderson Mesa Station 0 |
| Lowell Observatory-LONEOS 0 |
| LPL/Spacewatch II 0 |
| LSND 0 Los Alamos, NM |
| Lucile Miller Observatory 0 Maiden, NC |
| Lunar Cafe Observatory 0 |
| M. S. U. Observatory 0 Minot, ND |
| Macalester College Observatory 0 St. Paul, MN |
| Madison-YRS 0 |
| Manastash Ridge Observatory 0 |
| Maria Mitchell Observatory 2554 Nantucket, MA |
| Martin Observatory 0 Blacksburg, VI |
| Martz Observatory 0 Jamestown, NY |
| Maryland Space Grant Consortium Observatory 0 Baltimore, MD |
| Maui Space Surveillance System 0 Maui, HI |
| Mauna Kea Observatory 96720 Hilo, HI |
| Maynard F. Jordan Planetarium and Observatory 0 Orono, ME |
| McCollum Observatory 0 Cedar Falls, IA |
| McDonald Observatory 79734 Mt. Fowlkes |
| McKim Observatory 0 Greencastle, IN |
| McMillin Observatory 0 Columbus, OH |
| MDM Observatory 0 Kitt Peak, AZ |
| Melton Memorial Observatory 0 Columbia, SC |
| Michigan State University Observatory 48824 East Lansing, MI |
| Middle Tennessee State University Observatory 0 Murfreesboro, TN |
| Middlebury 0 |
| Millard Observatory 0 Omaha, NE |
| Millstone Hill Observatory (MHO) 0 Millstone Hill |
| Mini 1.2 Meter Radio Telescope 2138 Cambridge, MA |
| Missouri City 0 |
| MIT Haystack Observatory 0 Westford, MA |
| MMT Observatory 0 Mt. Hopkins, AZ |
| Monterey Institute for Research in Astronomy 0 Marina, CA |
| Moonedge Observatory 0 Northport, NY |
| Moorpark College Observatory 0 |
| Morehead Astrophysical Observatory 40351 Morehead, KY |
| Mount Belleview Observatory 0 |
| Mount Bigelow 0 |
| Mount Cuba Observatory 0 Wilmington, PA |
| Mount Graham-VATT 0 |
| Mount Laguna Observatory 0 San Diego, CA |
| Mount Stony Brook Observatory 0 Stony Brook, NY |
| Mount Wilson Observatory 91106 Pasadena, CA |
| Mountain Skies Observatory 0 Lyman, WY |
| Msgr. S. G. Menke Observatory 0 Davenport, IA |
| N. A. Richardson Astronomical Observatory 0 San Bernardino, CA |
| NASA Infra Red Telescope Facility 0 Mauna Kea, HI |
| NASA Orbital Debris Observatory 0 NM |
| Nashville 0 |
| National Radio Astronomy Observatory 0 Green Bank, WV |
| National Radio Astronomy Observatory (NRAO) 0 Kitt Peak, AZ |
| National Solar Observatory - Sacramento Peak 0 Sunspot, NM |
| Nee-Bee Observatory 0 Franktown, CO |
| New Bullpen Observatory 0 Alpharetta, GA |
| North Georgia Astronomical Observatory 0 Dahlonega, GA |
| North Scituate 0 |
| Northern Arizona University 0 Flagstaff, AZ |
| Northern Cross Observatory 0 Boon, MI |
| Northern Illinois Univ. Observatory 0 De Kalb, IL |
| NorthMoor Observatory 0 Peoria, IL |
| Northwest Kansas Astronomical Society Deep Sky Eye 0 Goodland, KS |
| Northwood Ridge Observatory 0 |
| Northwood Ridge Observatory 0 |
| Northwood Ridge Observatory 03261 Northwood |
| Norton Observatory 0 Worcester, MA |
| Oak Ridge Observatory 0 |
| Oakley Observatory 0 Terre Haute, IN |
| Oakwood 0 |
| Oatland Island Education Center Observatory 0 Savannah, GA |
| Observatory of the State University of Missouri 0 |
| OCA-Anza Observatory 0 |
| Ohio State University Radio Observatory 0 Delaware, OH |
| Oil Region Astronomical Observatory 0 Franklin, Pensylv |
| Ojai 0 |
| Olin Observatory 0 New London, CT |
| Olivet College Planetarium and Observatory 0 Olivet, MI |
| Onan Observatory 0 Norwood/Young America, MN |
| Optec Observatory 0 |
| OrbitJet Observatory 0 Colden, NY |
| Owens Valley Radio Observatory (OVRO) 0 Big Pine, CA |
| Pacific Lutheran University Keck Observatory 0 |
| Palisades-Dows Observatory 0 Swisher, IA |
| Palmer Divide Observatory 0 Colorado Springs, CO |
| Palomar Mountain 92060 Palomar Mountain, CA |
| Palomar Mountain-DSS 0 |
| Palomar Mountain/NEAT 0 |
| Palominas Star Haven Observatory 0 Sierra Vista, AZ |
| Paul P. Feder Observatory 0 Moorhead, MN |
| Paul Robinson Observatory 0 High Bridge, NJ |
| Paul Robinson Observatory, NJAA 0 High Bridge, NJ |
| Peach Mountain Radio Observatory 0 |
| Perkins Observatory 43015 Delaware, OH |
| Petroglyph Observatory 0 Albuquerque, NM |
| Pettinger-Guiley Observatory 0 Puyallup, WA |
| Physics Department Observatory 0 Salt Lake City, UT |
| Pine Bluff Observatory 0 Cross Plains, WI |
| Pine Mountain Observatory 0 Eugene, OR |
| Port Allen 0 |
| Poway Valley 0 |
| Powell Observatory 0 Louisburg, KS |
| Prescott 0 |
| Princeton University Observatory 8544 Princeton, NJ |
| Principia Astronomical Observatory 0 Elsah, MS |
| Prude Ranch 0 |
| PSU-Greenbush Astrophysical Observatory 0 Girard, KS |
| Puckett Observatory 30540 Ellijay |
| Radio Meteor Observatory 0 Blytheville, AR |
| Radio Solar Telescope Network 0 Palehua, HI |
| Radio Solar Telescope Network 0 South Hamilton, MA |
| Rainwater Observatory 0 French Camp, MS |
| Rand Observatory 0 |
| Randy Stegemeyer 0 Seattle, WA |
| Raul Alvarez 0 |
| Red Mountain Observatory 0 |
| Remick Memorial Observatory 0 Lockport, NY |
| Reynolds Observatory, Potsdam 13699 Potsdam |
| Ricard Observatory 0 Santa Clara, CA |
| Rick Drozd 0 St Joseph, MO |
| Rifle Camp Park Observatory 0 Paterson, NJ |
| RIT Observatory, Rochester 0 |
| Ritchie Observatory 0 Bainbridge Island, WA |
| River Moss Observatory 0 St. Peters, MS |
| River Oaks Observatory 0 New Braunfels, TX |
| Riverside 0 |
| Rixeyville 0 |
| RMCC Observatory 0 Tulsa, OK |
| Roane State Community College Tamke-Allan Obs. 37748 Harriman, TN |
| Roane State Tamke-Allan Observatory 37748 Rockwood TN |
| Roane State Tamke-Allen Observatory 0 Harriman, TN |
| Robert Suding*s Domed Observatory 0 Conifer, CO |
| Robert Suding*s Rolling Roof Observatory 0 Conifer, CO |
| Roberts Observatory 0 Berea, KY |
| Robinson Observatory 0 Orlando, FL |
| Rockland Observatory 0 Sierra Vista, AZ |
| Rockland Observatory aka Tarphenge 0 |
| Rolnick Observatory 0 Westport, CT |
| Rose-Hulman Observatory 0 Terre Haute, IN |
| Rosemary Hill Observatory, University of Florida 0 |
| Rutherford 0 |
| S. B. P. Observatory 0 Cedarville, OH |
| Sabino Canyon Observatory 0 Tucson, AZ |
| Salida 0 |
| Sam Houston State University Planetarium and Obser 0 Huntsville, TX |
| San Clemente 0 |
| San Emigdio Peak 0 |
| San Fernando Observatory 0 Northridge, CA |
| San Francisco State University Observatory 0 San Fancisco, CA |
| San Pedro Martir 0 |
| Sayre Observatory 0 South Bethlehem, PA |
| Schoonover Observatory 45801 Lima |
| Seagrave Memorial Observatory 0 North Scituate, RI |
| Seven Hills Observatory 0 Kearney, NE |
| Shannon Davenports Astronomy Page 0 VT |
| Shattuck Observatory 0 Hanover, NH |
| Sherzer Observatory 0 Ypsilanti, MI |
| Silvercreek Observatory 0 Scurry, TX |
| Smith River Observatory 0 Danbury, NH |
| Smithonian Astrophysical Observatory 0 Cambridge, MA |
| Snohomish Hilltop Observatory 0 |
| Solway Observatory 0 Knoxville, TN |
| Sommers-Bausch Observatory 80309 Boulder, CO |
| Sonoita Hills Observatory 0 Sonoita, AZ |
| Sonoma State University Observatory 0 Rohnert Park, CA |
| SOUDAN-2 0 Soudan, Minnesota |
| Speer-Lyell Observatory 0 Ridgeland, MS |
| Springfield Science Museum Observatory 0 Springfield, MA |
| Sproul Observatory 0 Swarthmore, PA |
| St. Augustine High School Observatory 0 St. Augustine, FL |
| St. John*s College Observatory 0 Annapolis, MD |
| St. Mark*s Planetarium and Observatory 0 Dallas, TX |
| St. Vincent College Observatory and Planetarium 0 Latrobe, PA |
| Stamford Museum Observatory 6903 Stamford, CT |
| Stamford Observatory 06905 Stamford, CT |
| Star Catcher Observatory 0 Anza, CA |
| Star Chaser Observatory 0 Sedalia, CO |
| Star Cruiser Observatory 0 Anza, CA |
| Starhome 93254 Springville |
| Starhouse Observatory 0 Cologne, MN |
| Starlight Observatory 0 Assonet, MA |
| Stephen F. Austin State University Observatory 75962 Nacogdoches, TX |
| Steve Stefanik 0 Manchester, NH |
| Steward Observatory 87521 Tucson, AZ |
| Steward Observatory, Kitt Peak-Spacewatch 0 |
| Stilabower Public Observatory 0 Lamar, MO |
| Stockton College Observatory 0 Pomona, NY |
| Stokesville Observatory and Museum 0 Verona, VA |
| Stone Haven Observatory 0 |
| Stone Haven Observatory 85239 Maricopa |
| Stony Ridge Observatory 0 |
| Stony Ridge Observatory 92592 Temecula, CA |
| Strickler Planetarium & Observatory 0 Kankakee, IL |
| Stull Observatory, Alfred University 0 |
| Submillimeter Array (SMA) 0 Mauna Kea, HI |
| Sudbury 0 |
| Sunflower Observatory 0 Olathe, KS |
| Sunriver Nature Center Observatory 0 Sunriver, OR |
| Superfluid Helium Target (HERON) 0 Providence, RI |
| Suubaru Telescope 0 Mauna Kea, HI |
| SW Institute for Space Research 0 Cloudcroft, NM |
| Swasey Observatory 0 Granville, OH |
| Table Mountain Observatory, Wrightwood 92397 Wrightwood, CA |
| Table Mountain Observatory, Wrightwood-PHMC 92397 Wrightwood, CA |
| Tar River Astronomy Club 0 Plaistow NH |
| Taunton 0 |
| Taylor Observatory 95451 Kelseyville |
| Tebbutt Observatory 0 Edgewood, NM |
| Temecula 0 |
| Tenagra Observatory 0 Cottage Grove, OR |
| Texas A&M Observatory 0 College Station, TX |
| The Bradstreet Observatory 0 St. Davids, PA |
| The Grasslands Observatory 85715 Tucson |
| The Stephens Observatory 0 Hiram, OH |
| Thornton 0 |
| Three College Observatory 0 Greensboro, NC |
| Three Rivers Observatory 0 Three Rivers, CA |
| Timberland Observatory 0 Decatur, AL |
| Toby Point Observatory 0 Narragansett, RI |
| Toby Point Observatory 02882 Narragansett, RI |
| Toby Point Observatory 02882- Narragansett, RI |
| Torus Observatory 0 Buckley |
| Tumamoc Hill, Tucson 0 Tucson, AZ |
| U. S. Naval Academy Observatory 0 Annapolis, MD |
| U.S. Naval Academy 0 Michelson, MD |
| U.S. Naval Observatory 86002 Flagstaff, AZ |
| U.S. Naval Observatory 20392 Washington, DC |
| UCCS Observatory 0 Colorado Springs, CO |
| Underwood Observatory 0 Hubbardston, MA |
| United Kingdom Infra Red Telescope (UKIRT) 0 Mauna Kea, HI |
| Univ. of Illinois at Springfield Observatory 0 Springfield, IL |
| Univ. of Illinois Observatory 0 Urbana, IL |
| University Hawai*i Telescope 0 Mauna Kea, HI |
| University of Florida Radio Observatory (UFRO) 0 Gainesville, FL |
| University of Florida Teaching Observatory 0 Gainesville, FL |
| University of Georgia Observatory 0 Athens, GA |
| University of Indianapolis Radio Observatory 46227 Indianapolis, IN |
| University of Maryland Observatory 0 College Park, MD |
| University of Minnesota 0 Minneapolis, MN |
| University of Minnesota Infrared Observatory, Mt. 0 |
| University of New Hampshire Observatory 0 Durham, NH |
| University of New Mexico Campus Observatory 0 Albuquerque, NM |
| University of North Dakota 0 Grand Forks, ND |
| University of North Texas Astronomy Observatory 0 Denton, TX |
| University of Pennsylvania Observatory 0 Philadelphia, PA |
| University of Rhode Island 0 Quonochontaug, RI |
| University of Utah Hansen Planetarium 0 Tooele, UT |
| University of Washington Campus Observatory 0 Seattle |
| USAF Academy Observatory 0 Colorado Springs, CO |
| UTC Clarence T. Jones Observatory 0 Chattanooga, TN |
| Valdosta State University Observatory 0 Valdosta, GA |
| Van Allen Observatory 0 Iowa City, IA |
| Van Vleck Observatory 6459 Middletown, CT |
| Vassar College Observatory 0 Poughkeepsie, NY |
| Vedeler Observatory 0 Catalina, AZ |
| Vega-Bray Observatory 0 Tucson, AZ |
| Vernonia Peak Observatory 0 Vernonia, OR |
| Very Large Array (VLA) 0 San Agustin, NM |
| Very Large Array Radio Telescope and Very Long Bas 0 Socorro, NM |
| Very Long Baseline Array (VLBA) 0 Fort Davis, TX |
| Very Long Baseline Array (VLBA) 0 Los Alamos, NM |
| Very Long Baseline Array (VLBA) 0 Pie Town, NM |
| Very Long Baseline Array (VLBA) 0 Kitt Peak, AZ |
| Very Long Baseline Array (VLBA) 0 Owens Valley. CA |
| Very Long Baseline Array (VLBA) 0 Brewster, WA |
| Very Long Baseline Array (VLBA) 0 Mauna Kea, HI |
| Very Long Baseline Array (VLBA) 0 Saint Croix, VI |
| Very Long Baseline Array (VLBA) 0 Hancock, NH |
| Very Long Baseline Array (VLBA) 0 North Liberty, IA |
| Villanova University Observatory 0 Villanova, PA |
| W & B Observatory 0 Cloudcroft, NM |
| Wallace Astrophysical Observatory 0 Cambridge, MA |
| Wallace Observatory 0 Westford, MA |
| Wallis Observatory 0 |
| Wanapum Dam 0 |
| Warner and Swasey Nassau Station 0 Chardon, OH |
| Warner and Swasey Observatory 44106 Cleveland, OH |
| Warren Rupp Observatory 0 Mansfield, OH |
| Washburn Observatory 0 Madison, WI |
| Watson-King Planetarium-Observatory 0 Baltimore, MD |
| Wayside Observatory 0 Minnetonka, MN |
| Weitkamp Observatory 0 Westerville, OH |
| Western Connecticut State University Observatory 0 Danbury, CT |
| Wheaton College Observatory 0 Norton, MA |
| Whitewater Observatory 0 Whitewater, WI |
| Whitin Observatory 0 Wellesley, MA |
| William Bucknell University Observatory 0 Lewisburg, PA |
| William Miller Sperry Observatory 0 Cranford, NJ |
| Williams,AZ 0 |
| Willow Creek Observatory 0 Canton, MI |
| Winchester 0 |
| Windward Community College Radio Observatory 0 Kaneohe, Oahu, HI |
| Winer Mobile Observatory 0 Sonoita, AZ |
| Winfree Observatory 0 Lynchburg, VA |
| Woodside Observatory and Planetarium 0 Wenham, MA |
| Worley Astronomical Observatory 0 Shreveport, LA |
| Wyoming Infrared Observatory 0 Jelm Mountain, WY |
| Wyrick Observatory 0 Haymarket |
| Yale Observatory 0 New Haven |
| Yale Observatory 0 Bethany |
| Yerkes Observatory 53191 Williams Bay, WI |
| Zeno Observatory 0 Edmond, OK |
| Zephyrhills 0 |
