Observatories: North America
500 results (limit reached)
| Name | City | Country | Spectral | IAU |
|---|---|---|---|---|
| 3towers Observatory | Tucson | USA | UV, Optical | |
| 650 Temecula | Temecula, CA | USA | UV, Optical | 650 |
| A. J. Dyer Observatory of Vanderbilt University | Brentwood, TN | USA | UV, Optical | |
| Alfred Univ. Stull Observatory | Alfred, NY | USA | UV, Optical | 784 |
| Algonquin Radio Observatory | Whitney, Ontario | Canada | Radio | |
| Allegheny Observatory | Pittsburgh, PA | USA | UV, Optical | 778 |
| ALLEGRO | Baton Rouge, LA | USA | 747 | |
| Allen Telescope Array | Hat Creek | USA | Radio | |
| Allen, Texas | USA | UV, Optical | 733 | |
| An Unconventional Observatory | Fort Worth, TX | USA | UV, Optical | |
| Ann Arbor | USA | UV, Optical | 767 | |
| Apache Point Observatory | Sunspot, NM | USA | UV, Optical | 705 |
| Apache Point-Sloan Digital Sky Survey | USA | UV, Optical | 645 | |
| Apollo Observatory | Dayton, OH | USA | UV, Optical | |
| Arcturus Observatory | Whiting, NJ | USA | UV, Optical | |
| Area 31 Research Facility | Shelburne, Ontario | Canada | Radio | |
| Area 52 Observatory | Nashville, AR | USA | UV, Optical | 460 |
| Arecibo Observatory | Arecibo, PR | Puerto Rico | Radio | 251; |
| Arkansas Tech University Observatory | Russellville, AR | USA | UV, Optical | |
| Array for Microwave Background Anisotropy | Mauna Loa | USA | Radio | T10 |
| Ashton-Wildwood Observatory | Des Moines, IA | USA | UV, Optical | |
| Assonet | USA | UV, Optical | 828 | |
| Astronaut Memorial Planetarium and Observatory | Cocoa, FL | USA | UV, Optical | |
| Astronomical Adventures Observatory | Flagstaff, AZ | USA | UV, Optical | |
| Astronomical Research Observatory | Charleston | USA | H55 | |
| Astrophysical Observatory at the College of Staten | Staten Island, NY | USA | UV, Optical | 294 |
| Atmospheric Research Observatory Northern Arizona | Flagstaff, AZ | USA | UV, Optical | 687 |
| Ayer Observatory | Milton, MA | USA | UV, Optical | |
| Badlands Observatory | Quinn, SD | USA | UV, Optical | 918 |
| Bagdad | USA | UV, Optical | 714 | |
| Baldwin Observatory | Grand Rapids, MI | USA | UV, Optical | |
| Ball State University Observatory | Muncie, IN | USA | UV, Optical | |
| Baton Rouge Observatory | USA | UV, Optical | 747 | |
| BCC Observatory | Cocoa, FL | USA | UV, Optical | 758 |
| Beaver Meadow Observatory | Java Center, NY | USA | UV, Optical | |
| Behlen Observatory | Lincoln, NE | USA | UV, Optical | |
| Belen Coll. Observatory | Havane | Cuba | UV, Optical | |
| Berkeley Undergrad Radio Astronomy Observatory | Berkeley, CA | USA | Radio | 660 |
| Big Bear Solar Observatory | Big Bear Lake, Ca | USA | Radio | |
| Big Bear Solar Observatory | Big Bear City, CA | USA | UV, Optical | |
| Big Woodchuck Weekend Solar Observatory | Pittsburgh | USA | UV, Optical | |
| Biosphere 2 Observatory | USA | UV, Optical | 853 | |
| Bishop Planetarium & Observatory | Bradenton, FL | USA | UV, Optical | |
| Blaber Observatory | Oracle, AZ | USA | UV, Optical | |
| Black Forest Observatory | Colorado Springs, CO | USA | UV, Optical | |
| Boelcke Observatory | Northeast, PA | USA | UV, Optical | |
| Bok Telescope | Kitt Peak, AZ | USA | UV, Optical | V00 |
| Boltwood Observatory, Stittsville | Canada | UV, Optical | 772 | |
| Bowman Observatory | Greenwich, CT | USA | UV, Optical | |
| Boyeros Observatory, Havana | Cuba | UV, Optical | 771 | |
| Bradley Observatory | Decatur, Georgia | USA | Radio | |
| Bradley Observatory | Decatur, GA | USA | UV, Optical | |
| Braeside Observatory | Flagstaff, AZ | USA | UV, Optical | |
| Brainerd | USA | UV, Optical | 726 | |
| BREC, LSU, BRAS Highland Road Park Observatory | Baton Rouge, LA | USA | UV, Optical | 747 |
| Brooks Observatory | Toledo, OH | USA | UV, Optical | |
| Brooks Observatory | Mt. Pleasant, MI | USA | UV, Optical | 746 |
| Bruce Johnston | Flint, MI | USA | UV, Optical | |
| Buhl Planetarium & Observatory | Pittsburgh, PA | USA | UV, Optical | |
| Burke-Gaffney Observatory | Halifax | Canada | UV, Optical | 851 |
| Burlington | Burlington, NJ | USA | UV, Optical | 292 |
| Burlington remote site | Burlington | USA | UV, Optical | 293 |
| Bush Observatory | Albany, MO | USA | UV, Optical | |
| C. E. K. Mees Observatory | Rochester, NY | USA | UV, Optical | |
| Cahall Observatory | Braintree, MA | USA | UV, Optical | |
| Calgary | Canada | UV, Optical | 681 | |
| Caltech Submillimeter Observatory (CSO) | Hilo, Hawai*i | USA | Radio | T10 |
| Camarillo | USA | UV, Optical | 670 | |
| Canada-France-Hawaii Telescope Corp. | Kamuela, HI | USA | UV, Optical | |
| Carbuncle Hill Observatory | Greene, RI | USA | UV, Optical | 912 |
| Catalina Sky Survey | USA | UV, Optical | 703 | |
| Catalina Station | Tucson, AZ | USA | UV, Optical | 693 |
| Catholic University Observatory | Washington, DC | USA | UV, Optical | 295 |
| Cave Creek Observatory | Cave Creek, AZ | USA | UV, Optical | |
| CCFR | Irvington, NY | USA | Neutrino | W44 |
| Chabot Space & Science Center | Oakland, CA | USA | UV, Optical | G58 |
| Chamberlin field station | USA | UV, Optical | 707 | |
| Chamberlin Observatory | Denver, CO | USA | UV, Optical | 708 |
| Champaign-Urbana Astronomical Society Observatory | Champaign, IL | USA | UV, Optical | |
| CHARA Array | Mount Wilson | USA | Optical, NIR | |
| Charles E. Daniel Observatory | Greenville, SC | USA | UV, Optical | |
| Charles S. Morris Observatory | North Manchester, IN | USA | UV, Optical | |
| Chinle | USA | UV, Optical | 700 | |
| Cincinnati Observatory Center | Cincinnati, OH | USA | UV, Optical | 765 |
| Clark Lake Radio Observatory | Clark Lake | USA | Radio | |
| Cleveland State Community College Observatory | Cleveland, TN | USA | UV, Optical | |
| Climenhaga Observatory | Victoria | Canada | UV, Optical | 657 |
| Clyde W. Tombaugh Observatory | Lawrence, KS | USA | UV, Optical | |
| College of Saint Catherine Astrophysical Observato | St. Paul, MN | USA | UV, Optical | |
| College of the Redwoods Observatory | Eureka, CA | USA | UV, Optical | |
| Collins Observatory, Corning Community College | USA | UV, Optical | 911 | |
| Community College of Rhode Island Observatory | Warwick, RI | USA | UV, Optical | |
| Concordia College Observatory | Moorhead, MN | USA | UV, Optical | |
| CopperHead Ridge Observatory | Winston-Salem, NC | USA | UV, Optical | |
| Cordell-Lorenz Observatory | Sewanee, TN | USA | UV, Optical | 850 |
| Corpus Christi | USA | UV, Optical | 728 | |
| Cosmologically Significant Mass Oscillation Search | Batavia, IL | USA | ||
| Cottonwood Observatory | Ada, OK | USA | UV, Optical | 723 |
| Crane Observatory | Topeka, KS | USA | UV, Optical | |
| Craven E. Williams Observatory | Boiling Springs, NC | USA | UV, Optical | |
| Crescent Moon Observatory | Columbus, IN | USA | UV, Optical | 770 |
| Custer Institute Observatory | Southold, NY | USA | UV, Optical | W51 |
| Daniel K. Inouye Solar Telescope | Maui | USA | Optical, NIR | |
| Darling Hill Observatory | Marcellus NY | USA | UV, Optical | |
| David Dunlap Observatory | Richmond Hill | Canada | UV, Optical | 779 |
| David J. Raden Observatory | Tampa, FL | USA | UV, Optical | |
| Dayton | USA | UV, Optical | 838 | |
| Dearborn Observatory | Evanston, IL | USA | UV, Optical | 768 |
| Dearborn Observatory | Evanston, IL | USA | UV, Optical | 756 |
| Deep Sky Eye Observatory | Goodland, KS | USA | UV, Optical | |
| Deep Space Network (DSS 13) | Goldstone, CA | USA | Radio | 252; |
| Deep Space Network (DSS 14) | Fort Irwin, CA | USA | Radio | 253; |
| Deep Space Network (DSS 15) | Goldstone, CA | USA | Radio | 253 |
| Deep Space Network (DSS 16) | Goldstone, CA | USA | Radio | 252 |
| Deep Space Network (DSS 17) | Goldstone, CA | USA | Radio | 252 |
| Deep Space Network (DSS 23) | Goldstone, CA | USA | Radio | 252 |
| Deep Space Network (DSS 24) | Goldstone, CA | USA | Radio | 252 |
| Deep Space Network (DSS 25) | Goldstone, CA | USA | Radio | 252 |
| Deep Space Network (DSS 26) | Goldstone, CA | USA | Radio | 252 |
| Deep Space Network (DSS 27) | Goldstone, CA | USA | Radio | 252 |
| Deep Space Network (DSS 28) | Goldstone, CA | USA | Radio | 252 |
| Deep Undersea Muon and Neutrino Detector (DUMAND) | HI | USA | Neutrino | |
| Deer Meadow Observatory | Winston-Salem, NC | USA | UV, Optical | |
| Desert Beaver Observatory | USA | UV, Optical | 919 | |
| Desert Moon Observatory | Las Cruces, NM | USA | UV, Optical | 448 |
| Devon and Campus Observatory | Edmonton | Canada | UV, Optical | |
| Dominion Astrophysical Observatory | Victoria | Canada | UV, Optical | 658 |
| Dominion Observatory | Ottawa | Canada | UV, Optical | 790 |
| Dominion Radio Astrophysical Observatory (DRAO) | Penticton, BC | Canada | Radio | |
| Don Dillinger*s Garden Shed Obsevatory | Snohomish, WA | USA | UV, Optical | |
| donald dillinger | 98290 | USA | UV, Optical | |
| Donn Starkey | Auburn, IN | USA | UV, Optical | |
| Doyan Rose Observatory | Indianapolis, IN | USA | UV, Optical | 744 |
| Dr. Phillips CineDome | Orlando, FL | USA | UV, Optical | |
| Drake University | Des Moines, IA | USA | UV, Optical | 742 |
| Droke Observatory | Fayetteville, AR | USA | UV, Optical | |
| Drum Hill Station | Chelmsford, MA | USA | UV, Optical | 835 |
| Dudley Observatory | USA | UV, Optical | 296 | |
| Eastern College Observatory and Planetarium | St. Davids, PA | USA | UV, Optical | |
| Edinboro University of Pennsylvania Observatory | Edinboro, PA | USA | UV, Optical | |
| Edward Naylor Observatory | Lewisberry PA | USA | UV, Optical | |
| Eileen Collins Observatory | Corning, NY | USA | UV, Optical | |
| Elgin National Watch Co. Observatory | Elgin, IL | USA | UV, Optical | |
| Elmcrest Observatory and Powell Observatory | Blue Springs, MO | USA | UV, Optical | |
| Elsinore | Riverton, UT | USA | UV, Optical | |
| Emerald Lane Observatory | Decatur, AL | USA | UV, Optical | 843 |
| Emmy Observatory | New Paltz, NY | USA | UV, Optical | 865 |
| Erwin W. Fick Observatory | Ames, IA | USA | UV, Optical | |
| Estacion de Observacion Solar, EOS | Hermosillo, Sonora | Mexico | UV, Optical | |
| Etscorn Observatory | USA | UV, Optical | 719 | |
| Etters | USA | UV, Optical | 832 | |
| EverStaR Astronomical Observatory | Olathe, KS | USA | UV, Optical | 849 |
| Everstar Observatory | Olathe, KS | USA | UV, Optical | 849 |
| F. M. U. Observatory | Florence, SC | USA | UV, Optical | |
| Fair Oaks Ranch | USA | UV, Optical | 725 | |
| Farpoint Observatory | Eskridge, KS | USA | UV, Optical | 734 |
| Faulkes Telescope North | Haleakala | USA | Optical | |
| Fitchburg | USA | UV, Optical | 823 | |
| Five College Radio Astronomy Observaory | Amherst, MA | USA | UV, Optical | |
| Five College Radio Astronomy Observatory (FCRAO) | New Salem, MA | USA | Radio | |
| Fleenor Observatory | Knoxville, Tennessee | USA | UV, Optical | |
| Flint | USA | UV, Optical | 840 | |
| Florissant | USA | UV, Optical | 710 | |
| Flower and Cook Observatory | Philadelphia, PA | USA | UV, Optical | 791 |
| Foggy Bottom, Hamilton | Hamilton, NY | USA | UV, Optical | 776 |
| Foothill College Observatory | Los Altos, CA | USA | UV, Optical | |
| Ford Observatory | Wrightwood, CA | USA | UV, Optical | 674 |
| Ford Observatory | Ithaca, NY | USA | UV, Optical | 845 |
| FountainHills | USA | UV, Optical | 678 | |
| Four Winds Observatory | Lake Leelanau, MI | USA | UV, Optical | 762 |
| Fox Observatory | Fort Lauderdale, FL | USA | UV, Optical | |
| Fox Observatory | Potterville, MI | USA | UV, Optical | |
| Fox Park Public Observatory | Potterville, MI | USA | UV, Optical | |
| Frank P. Brackett Observatory & Millikan Planetari | Claremont, CA | USA | UV, Optical | |
| Fred Lawrence Whipple Observatory | Amado, AZ | USA | Gamma, UV, Optical | 696 |
| Freeport McMoRan Observatory and Planetarium | Kenner, LA | USA | UV, Optical | |
| Fremont Peak Observatory | San Juan Bautista, CA | USA | UV, Optical | |
| Frosty Drew Observatory | Charlestown, RI | USA | UV, Optical | |
| Fuertes Observatory | Ithaca, NY | USA | UV, Optical | |
| Furnace Brook Observatory | Craston, RI | USA | UV, Optical | 836 |
| Gemeaux Observatory | Lawal | Canada | UV, Optical | 818 |
| Gemini North Telescope | Mauna Kea, HI | USA | UV, Optical | T15 |
| George Learn Observatory | East Stroudsburg, PA | USA | UV, Optical | |
| George Observatory | Needville, TX | USA | UV, Optical | 735 |
| Gettysburg College Observatory | USA | UV, Optical | 842 | |
| Glasgow, Missouri | USA | UV, Optical | 745 | |
| Glenlea Astronomical Observatory | Winnipeg | Canada | UV, Optical | 729 |
| Goethe Link Observatory, Brooklyn | Bloomington, IN | USA | UV, Optical | 760 |
| Golden Pond Planetarium and Observatory | Golden Pond, KY | USA | UV, Optical | |
| Goldendale Observatory | Goldendale, WA | USA | UV, Optical | |
| Goodricke-Pigott Observatory | Tucson, AZ | USA | UV, Optical | 683 |
| Goodsell Observatory | Northfield, MN | USA | UV, Optical | 741 |
| Gordon D. Crowell Astrophysical Observatory | Whittier, CA | USA | UV, Optical | |
| Gordon MacMillan Southam Observatory | Vancouver | Canada | UV, Optical | |
| Grant O. Gale Observatory | Grinnell, IA | USA | UV, Optical | |
| Granville | USA | UV, Optical | 825 | |
| Green Bank | USA | UV, Optical | 256 | |
| Green Bank 20m Telescope | Green Bank, WV | USA | Radio | 256 |
| Green Bank 40 ft Telescope | Green Bank, WV | USA | Radio | 256 |
| Green Bank 43m Telescope | Green Bank, WV | USA | Radio | 256 |
| Green Bank Interferometer | Green Bank, WV | USA | Radio | 256 |
| Green Mountain Observatory | Williston, VT | USA | UV, Optical | |
| Griffith Observatory | Los Angeles, CA | USA | UV, Optical | |
| Haggart Observatory | Oregon City, OR | USA | UV, Optical | |
| Haleakala-AMOS | USA | UV, Optical | 608 | |
| Haleakala-NEAT/GEODSS | USA | UV, Optical | 566 | |
| Hard Labor Creek Observatory | Atlanta, GA | USA | UV, Optical | |
| Harry Zacheis Planetarium and Observatory | Alamosa, CO | USA | UV, Optical | |
| Harvard Observatory | Cambridge, MA | USA | UV, Optical | 802 |
| Hastings College Observatory | Hastings, NE | USA | UV, Optical | |
| Hat Creek Radio Observatory | Cassel, CA | USA | Radio | |
| HAWC Gamma Ray Observatory | Sierra Negra | Mexico | Gamma | |
| Haystack Observatory | Westford, MA | USA | Radio | 254; |
| Heinrich Hertz Submillimeter Telescope Observatory | Emerald Peak | USA | Radio | |
| Henry C. Gibson Observatory | West Palm Beach, FL | USA | UV, Optical | |
| Heron Cove Observatory | Orcas, WA | USA | UV, Optical | 659 |
| Hidden Valley Observatory | Rapid City, SD | USA | UV, Optical | |
| High Frequency Active Auroral Research Program (HA | Gakona, Alaska | USA | Radio | |
| High Knoll Observatory | Sierra Vista, AZ, some miles O | USA | UV, Optical | |
| High Point | USA | UV, Optical | 757 | |
| Highland Road Park Observatory | Baton Rouge, LA | USA | UV, Optical | 747 |
| Hildene Observatory | Manchester | USA | ||
| Hill | Fort Lauderdale, FL | USA | UV, Optical | H77 |
| Hobbs Observatory | Fall Creek, WI | USA | UV, Optical | 750 |
| Holmes Community College Observatory | Goodman, MS | USA | UV, Optical | |
| Homestake Mine | Lead | USA | Neutrino | |
| Hopkins Observatory | Williamstown, MA | USA | UV, Optical | |
| Hornback-Stuart Observatory | Indianapolis, IN | USA | UV, Optical | |
| Houston | USA | UV, Optical | 736 | |
| Hudson | USA | UV, Optical | 830 | |
| Humacao University Observatory | Humacao, PR | Puerto Rico | UV, Optical | |
| Hummingbird Observatory | Antioch, CA | USA | UV, Optical | |
| Hyde Memorial Observatory | Lincoln, NE | USA | UV, Optical | |
| Ibis Observatory, Manhaatan | USA | UV, Optical | 936 | |
| Illinois Wesleyan Univ. Observatory | Bloomington, IL | USA | UV, Optical | |
| Iowa Robotic Observatory | Sonoita, AZ | USA | UV, Optical | 857 |
| Irvine-Michigan-Brookhaven (IMB), Nucleon Decay | Cleveland, Ohio | USA | Neutrino | |
| J. I. Holcomb Observatory and Planetarium | Indianapolis, IN | USA | UV, Optical | |
| James and Barbara Moore Observatory | Punta Gorda, FL | USA | UV, Optical | |
| James C. Veen Observatory | Lowell, MI | USA | UV, Optical | H24 |
| James Clerk Maxwell Telescope (JCMT) | Mauna Kea, HI | USA | Radio | |
| James Lipp Observatory | San Diego, CA | USA | UV, Optical | |
| Jefferson Valley Observatory | Great Falls, MT | USA | UV, Optical | |
| Jims Astro Page | Oaxaca | Mexico | UV, Optical | |
| Joe Garlitz | Elgin, OR | USA | UV, Optical | |
| John C. Hook Memorial Observatory | Terre Haute, IN | USA | UV, Optical | |
| John H. Witte Observatory | West Burlington, IA | USA | UV, Optical | |
| John J. McCarthy Observatory | New Milford, CT | USA | UV, Optical | 932 |
| John W. H. Simpson Observatory | Princeton, NJ | USA | UV, Optical | |
| Joint Observatory, for cometary research | Socorro, NM | USA | UV, Optical | 702 |
| Jornada Observatory | USA | UV, Optical | 715 | |
| Jornada Observatory | Las Cruces, NM | USA | UV, Optical | 715 |
| Joseph H. Rogers Observatory | Traverse City, MI | USA | UV, Optical | |
| Juan Herrero | Hull, QC | Canada | UV, Optical | |
| Judson Boardman Coit Memorial Observatory | Boston, MA | USA | UV, Optical | |
| Junk Bond Observatory | Sierra Vista, AZ | USA | UV, Optical | 701 |
| Junk Bond Observatory | Sierra Vista, AZ 10 miles SO | USA | UV, Optical | 701 |
| Jupiter | USA | UV, Optical | 837 | |
| KAC Observatory | Parsonsburg, MA | USA | UV, Optical | |
| Kanab | USA | UV, Optical | 682 | |
| Kansas Wesleyan University Observatory | Salina, KS | USA | UV, Optical | |
| Keck Observatory | Kamuela, HI | USA | UV, Optical | T16 |
| Keeble Observatory | Ashland, VA | USA | UV, Optical | |
| Ken Odaisky Memorial Observatory | Sudbury | Canada | UV, Optical | |
| Kennon Observatory | University City, MS | USA | UV, Optical | |
| Keystone College Observatory | La Plume, PA | USA | UV, Optical | |
| Kiesel Park Observatory | Auburn, AL | USA | UV, Optical | |
| Kihei-AMOS Remote Maui Experimental Site | USA | UV, Optical | 625 | |
| King City | Canada | UV, Optical | 763 | |
| Kingsburg High Observatory | Kingsburg, CA | USA | UV, Optical | |
| Kitt Peak National Observatory | Kitt Peak, AZ | USA | UV, Optical | 695 |
| Kitt Peak, McGraw-Hill | USA | UV, Optical | 697 | |
| Kutztown University Observatory | Kutztown, PA | USA | UV, Optical | |
| La Scala Observatory | Lafayette, CA | USA | UV, Optical | |
| Lake Afton Public Observatory | Wichita, KS | USA | UV, Optical | |
| Lake Arrowhead | USA | UV, Optical | 677 | |
| Lake Clear | USA | UV, Optical | 824 | |
| Lake Cucamonga | USA | UV, Optical | 646 | |
| Lake Saint Louis | USA | UV, Optical | 751 | |
| Large Binocular Telescope | Mount Graham | USA | Optical, NIR | |
| Large Millimeter Telescope (LMT) | Mexico | Radio | ||
| Las Brisas Observatory | Colorado Springs, CO | USA | UV, Optical | |
| Laws Observatory | Columbia, MO | USA | UV, Optical | |
| Leander McCormick Observatory | Charlottesville, VA | USA | UV, Optical | 780 |
| Leeward Communiity College Observatory | Hilo, HI | USA | UV, Optical | |
| Leuschner Observatory | Berkeley | USA | UV, Optical | 660 |
| Lick Observatory | Mount Hamilton, CA | USA | UV, Optical | 662 |
| LIGO Hanford Observatory | Richland, WA | USA | ||
| LIGO Livingston Observatory | Livingston, LA | USA | ||
| LimeCreek | USA | UV, Optical | 721 | |
| Lincoln Laboratory ETS, New Mexico | USA | UV, Optical | 704 | |
| Litchfield Observatory | Clinton. NY | USA | UV, Optical | 789 |
| Littlebear Observatory | Redmond | USA | UV, Optical | |
| Long Wavelength Array | New Mexico | USA | Radio | |
| Lookum Observatory | Munising, MI | USA | UV, Optical | |
| Los Angeles | USA | UV, Optical | 680 | |
| Lowell Discovery Telescope | Happy Jack | USA | Optical, NIR | |
| Lowell Observatory | Flagstaff, AZ | USA | UV, Optical | 690 |
| Lowell Observatory-LONEOS | USA | UV, Optical | 699 | |
| Lowell Observatory, Anderson Mesa Station | USA | UV, Optical | 688 | |
| LPL/Spacewatch II | USA | UV, Optical | 291 | |
| LSND | Los Alamos, NM | USA | Neutrino | V27 |
| Lucile Miller Observatory | Maiden, NC | USA | UV, Optical | |
| Lunar Cafe Observatory | USA | UV, Optical | 847 | |
| M. S. U. Observatory | Minot, ND | USA | UV, Optical | |
| Macalester College Observatory | St. Paul, MN | USA | UV, Optical | |
| Madison-YRS | USA | UV, Optical | 927 | |
| Manastash Ridge Observatory | USA | UV, Optical | 664 | |
| Maple Ridge Observatory | Cambray, Ontario | Canada | UV, Optical | |
| Maria Mitchell Observatory | Nantucket, MA | USA | UV, Optical | 811 |
| Martin Observatory | Blacksburg, VI | USA | UV, Optical | 841 |
| Martz Observatory | Jamestown, NY | USA | UV, Optical | |
| Maryland Space Grant Consortium Observatory | Baltimore, MD | USA | UV, Optical | 454 |
| Maui Space Surveillance System | Maui, HI | USA | UV, Optical | |
| Mauna Kea Observatory | Hilo, HI | USA | UV, Optical | 568 |
| Mauna Loa Solar Observatory | Mauna Loa | USA | Optical | |
| Maynard F. Jordan Planetarium and Observatory | Orono, ME | USA | UV, Optical | |
| McCollum Observatory | Cedar Falls, IA | USA | UV, Optical | |
| McDonald Observatory | Mt. Fowlkes | USA | UV, Optical | 711 |
| McKim Observatory | Greencastle, IN | USA | UV, Optical | |
| McMillin Observatory | Columbus, OH | USA | UV, Optical | 769 |
| MDM Observatory | Kitt Peak, AZ | USA | UV, Optical | |
| Melton Memorial Observatory | Columbia, SC | USA | UV, Optical | |
| Michigan State University Observatory | East Lansing, MI | USA | UV, Optical | 766 |
| Middle Tennessee State University Observatory | Murfreesboro, TN | USA | UV, Optical | |
| Middlebury | USA | UV, Optical | 297 | |
| Mijovi II Astronomical Observatory | Quebradillas, PR | Puerto Rico | UV, Optical | |
| Millard Observatory | Omaha, NE | USA | UV, Optical | |
| Millstone Hill Observatory (MHO) | Millstone Hill | USA | Radio | |
| Mini 1.2 Meter Radio Telescope | Cambridge, MA | USA | Radio | |
| Missouri City | USA | UV, Optical | 722 | |
| MIT Haystack Observatory | Westford, MA | USA | UV, Optical | 254 |
| MMT Observatory | Mt. Hopkins, AZ | USA | UV, Optical | |
| Mont Megantic | Canada | UV, Optical | 301 | |
| Monterey Institute for Research in Astronomy | Marina, CA | USA | UV, Optical | |
| Moonedge Observatory | Northport, NY | USA | UV, Optical | 928 |
| Moorpark College Observatory | USA | UV, Optical | 666 | |
| Morehead Astrophysical Observatory | Morehead, KY | USA | Radio | |
| Mount Belleview Observatory | USA | UV, Optical | 462 | |
| Mount Bigelow | USA | UV, Optical | 698 | |
| Mount Cuba Observatory | Wilmington, PA | USA | UV, Optical | 788 |
| Mount Graham-VATT | USA | UV, Optical | 290 | |
| Mount Laguna Observatory | San Diego, CA | USA | UV, Optical | |
| Mount Stony Brook Observatory | Stony Brook, NY | USA | UV, Optical | |
| Mount Wilson Observatory | Pasadena, CA | USA | UV, Optical | 672 |
| Mountain Skies Observatory | Lyman, WY | USA | UV, Optical | |
| Msgr. S. G. Menke Observatory | Davenport, IA | USA | UV, Optical | |
| N. A. Richardson Astronomical Observatory | San Bernardino, CA | USA | UV, Optical | |
| NASA Infra Red Telescope Facility | Mauna Kea, HI | USA | NIR | T13 |
| NASA Orbital Debris Observatory | NM | USA | UV, Optical | |
| Nashville | USA | UV, Optical | 759 | |
| Nation River Observatory | Ottawa, Ontario | Canada | Radio | |
| National Observatory, Tacubaya | Mexico | UV, Optical | 724 | |
| National Radio Astronomy Observatory | Green Bank, WV | USA | UV, Optical | |
| National Radio Astronomy Observatory (NRAO) | Kitt Peak, AZ | USA | Radio | |
| National Research Council of Canada | Canada | UV, Optical | 658 | |
| National Solar Observatory - Sacramento Peak | Sunspot, NM | USA | UV, Optical | |
| Navy Precision Optical Interferometer | Flagstaff | USA | Optical, NIR | |
| Nee-Bee Observatory | Franktown, CO | USA | UV, Optical | |
| New Bullpen Observatory | Alpharetta, GA | USA | UV, Optical | 737 |
| North Georgia Astronomical Observatory | Dahlonega, GA | USA | UV, Optical | |
| North Scituate | USA | UV, Optical | 814 | |
| Northern Arizona University | Flagstaff, AZ | USA | UV, Optical | 687 |
| Northern Cross Observatory | Boon, MI | USA | UV, Optical | |
| Northern Illinois Univ. Observatory | De Kalb, IL | USA | UV, Optical | |
| NorthMoor Observatory | Peoria, IL | USA | UV, Optical | |
| Northwest Kansas Astronomical Society Deep Sky Eye | Goodland, KS | USA | UV, Optical | |
| Northwood Ridge Observatory | USA | UV, Optical | 225 | |
| Northwood Ridge Observatory | USA | UV, Optical | 225 | |
| Northwood Ridge Observatory | Northwood | USA | ||
| Norton Observatory | Worcester, MA | USA | UV, Optical | |
| Oak Bay | Victoria | Canada | UV, Optical | 642 |
| Oak Ridge Observatory | USA | UV, Optical | 801 | |
| Oakley Observatory | Terre Haute, IN | USA | UV, Optical | 916 |
| Oakwood | USA | UV, Optical | 749 | |
| Oatland Island Education Center Observatory | Savannah, GA | USA | UV, Optical | |
| Oaxaca | Mexico | UV, Optical | 732 | |
| Observatoire Astronomique de Laval | Laval | Canada | UV, Optical | |
| Observatoire Astronomique du Mont Mégantic | Notre-Dame-des-Bois | Canada | UV, Optical | |
| Observatoire de Société? Astronomique de Dolbeau | Québec | Canada | UV, Optical | |
| Observatoire du Cegep de Trois-Rivieres | Canada | UV, Optical | 924 | |
| Observatoire Mirabilis | Canada | UV, Optical | ||
| Observatorio Astrofisico Guillermo Haro | Cananea, Sonora | Mexico | UV, Optical | |
| Observatorio Astronomico del Centro Ecologico de S | Hermosillo, Sonora | Mexico | UV, Optical | |
| Observatorio Astronómico Nacional — Tonantzintla | Tonantzintla | Mexico | Optical | |
| Observatory of the State University of Missouri | USA | UV, Optical | 738 | |
| OCA-Anza Observatory | USA | UV, Optical | 643 | |
| Ohio State University Radio Observatory | Delaware, OH | USA | Radio | |
| Oil Region Astronomical Observatory | Franklin, Pensylv | USA | UV, Optical | |
| Ojai | USA | UV, Optical | 669 | |
| Olin Observatory | New London, CT | USA | UV, Optical | |
| Olivet College Planetarium and Observatory | Olivet, MI | USA | UV, Optical | |
| Onan Observatory | Norwood/Young America, MN | USA | UV, Optical | |
| Optec Observatory | USA | UV, Optical | 755 | |
| OrbitJet Observatory | Colden, NY | USA | UV, Optical | 227 |
| Orion Observatory | Mexico | UV, Optical | ||
| Owens Valley Radio Observatory (OVRO) | Big Pine, CA | USA | Radio | |
| Pacific Lutheran University Keck Observatory | USA | UV, Optical | 917 | |
| Palisades-Dows Observatory | Swisher, IA | USA | UV, Optical | |
| Palmer Divide Observatory | Colorado Springs, CO | USA | UV, Optical | 716 |
| Palomar Mountain | Palomar Mountain, CA | USA | UV, Optical | 675 |
| Palomar Mountain-DSS | USA | UV, Optical | 261 | |
| Palomar Mountain/NEAT | USA | UV, Optical | 644 | |
| Palominas Observatory | Mexico | UV, Optical | 925 | |
| Palominas Star Haven Observatory | Sierra Vista, AZ | USA | UV, Optical | |
| Pan-STARRS1 | Haleakala | USA | Optical | |
| Pan-STARRS2 | Haleakala | USA | Optical | |
| Paul P. Feder Observatory | Moorhead, MN | USA | UV, Optical | |
| Paul Robinson Observatory | High Bridge, NJ | USA | UV, Optical | |
| Paul Robinson Observatory, NJAA | High Bridge, NJ | USA | UV, Optical | W67 |
| Peach Mountain Radio Observatory | USA | Radio | ||
| Perkins Observatory | Delaware, OH | USA | Radio | H69 |
| Petroglyph Observatory | Albuquerque, NM | USA | UV, Optical | |
| Pettinger-Guiley Observatory | Puyallup, WA | USA | UV, Optical | |
| Physics Department Observatory | Salt Lake City, UT | USA | UV, Optical | |
| Pine Bluff Observatory | Cross Plains, WI | USA | UV, Optical | |
| Pine Mountain Observatory | Eugene, OR | USA | UV, Optical | |
| Plessissville | Canada | UV, Optical | 826 | |
| Port Allen | USA | UV, Optical | 929 | |
| Poway Valley | USA | UV, Optical | 934 | |
| Powell Observatory | Louisburg, KS | USA | UV, Optical | 649 |
| Prescott | USA | UV, Optical | 684 | |
| Princeton University Observatory | Princeton, NJ | USA | UV, Optical | 785 |
| Principia Astronomical Observatory | Elsah, MS | USA | UV, Optical | 846 |
| Prude Ranch | USA | UV, Optical | 717 | |
| PSU-Greenbush Astrophysical Observatory | Girard, KS | USA | UV, Optical | |
| Puckett Observatory | Ellijay | USA | UV, Optical | 764 |
| Radio Meteor Observatory | Blytheville, AR | USA | Radio | |
| Radio Solar Telescope Network | Palehua, HI | USA | Radio | |
| Radio Solar Telescope Network | South Hamilton, MA | USA | Radio | |
| Rainwater Observatory | French Camp, MS | USA | UV, Optical | |
| Rand Observatory | USA | UV, Optical | 816 | |
| Randy Stegemeyer | Seattle, WA | USA | UV, Optical | |
| Raul Alvarez | USA | UV, Optical | ||
| Red Mountain Observatory | USA | UV, Optical | 663 | |
| Remick Memorial Observatory | Lockport, NY | USA | UV, Optical | |
| Reynolds Observatory, Potsdam | Potsdam | USA | Radio | |
| Ricard Observatory | Santa Clara, CA | USA | UV, Optical | |
| Rick Drozd | St Joseph, MO | USA | UV, Optical | |
| Rifle Camp Park Observatory | Paterson, NJ | USA | UV, Optical | |
| RIT Observatory, Rochester | USA | UV, Optical | 920 | |
| Ritchie Observatory | Bainbridge Island, WA | USA | UV, Optical | |
| River Moss Observatory | St. Peters, MS | USA | UV, Optical | 852 |
| River Oaks Observatory | New Braunfels, TX | USA | UV, Optical | 915 |
| Riverside | USA | UV, Optical | 856 | |
| Rixeyville | USA | UV, Optical | 783 | |
| RMCC Observatory | Tulsa, OK | USA | UV, Optical | |
| Roane State Community College Tamke-Allan Obs. | Harriman, TN | USA | UV, Optical, Radio | |
| Roane State Tamke-Allan Observatory | Rockwood TN | USA | Radio | |
| Roane State Tamke-Allen Observatory | Harriman, TN | USA | UV, Optical | |
| Robert Suding*s Domed Observatory | Conifer, CO | USA | UV, Optical | |
| Robert Suding*s Rolling Roof Observatory | Conifer, CO | USA | UV, Optical | |
| Roberts Observatory | Berea, KY | USA | UV, Optical | |
| Robin Kemp | Calgary, AB | Canada | UV, Optical | |
| Robinson Observatory | Orlando, FL | USA | UV, Optical | |
| Robosky | Orangeville, ON | Canada | UV, Optical | |
| Rock Finder Observatory | Calgary | Canada | UV, Optical | 652 |
| Rockland Observatory | Sierra Vista, AZ | USA | UV, Optical | 933 |
| Rockland Observatory aka Tarphenge | USA | UV, Optical | 933 | |
| Rolnick Observatory | Westport, CT | USA | UV, Optical | |
| Rose-Hulman Observatory | Terre Haute, IN | USA | UV, Optical | 731 |
| Rosemary Hill Observatory, University of Florida | USA | UV, Optical | 831 | |
| Rothney Astrophysical Observatory, Priddis | Calgary | Canada | UV, Optical | 661 |
| Rutherford | USA | UV, Optical | 795 | |
| S. B. P. Observatory | Cedarville, OH | USA | UV, Optical | |
| Sabino Canyon Observatory | Tucson, AZ | USA | UV, Optical | 854 |
| Saint-Felicien | Canada | UV, Optical | 827 | |
| Salida | USA | UV, Optical | 706 | |
| Sam Houston State University Planetarium and Obser | Huntsville, TX | USA | UV, Optical | |
| San Clemente | USA | UV, Optical | 676 | |
| San Emigdio Peak | USA | UV, Optical | 668 | |
| San Fernando Observatory | Northridge, CA | USA | UV, Optical | |
| San Francisco State University Observatory | San Fancisco, CA | USA | UV, Optical | |
| San Pedro Martir | USA | UV, Optical | 679 | |
| Sayre Observatory | South Bethlehem, PA | USA | UV, Optical | 775 |
| Schoonover Observatory | Lima | USA | ||
| Science North Solar Observatory | Sudbury | Canada | UV, Optical | |
| Seagrave Memorial Observatory | North Scituate, RI | USA | UV, Optical | |
| Seven Hills Observatory | Kearney, NE | USA | UV, Optical | |
| Shannon Davenports Astronomy Page | VT | USA | UV, Optical | |
| Shattuck Observatory | Hanover, NH | USA | UV, Optical | 307 |
| Sherzer Observatory | Ypsilanti, MI | USA | UV, Optical | |
| Silvercreek Observatory | Scurry, TX | USA | UV, Optical | |
| Smith River Observatory | Danbury, NH | USA | UV, Optical | 459 |
| Smithonian Astrophysical Observatory | Cambridge, MA | USA | Radio | |
| Snohomish Hilltop Observatory | USA | UV, Optical | 909 | |
| Solway Observatory | Knoxville, TN | USA | UV, Optical | |
| Sommers-Bausch Observatory | Boulder, CO | USA | UV, Optical | 463 |
| Sonoita Hills Observatory | Sonoita, AZ | USA | UV, Optical | 648 |
| Sonoma State University Observatory | Rohnert Park, CA | USA | UV, Optical | |
| Sooke | Canada | UV, Optical | 655 | |
| SOUDAN-2 | Soudan, Minnesota | USA | Neutrino | |
| Speer-Lyell Observatory | Ridgeland, MS | USA | UV, Optical | |
| Springfield Science Museum Observatory | Springfield, MA | USA | UV, Optical | |
| Sproul Observatory | Swarthmore, PA | USA | UV, Optical | |
| St. Augustine High School Observatory | St. Augustine, FL | USA | UV, Optical | |
| St. John*s College Observatory | Annapolis, MD | USA | UV, Optical | |
| St. Mark*s Planetarium and Observatory | Dallas, TX | USA | UV, Optical | |
| St. Vincent College Observatory and Planetarium | Latrobe, PA | USA | UV, Optical | |
| Stamford Museum Observatory | Stamford, CT | USA | UV, Optical | 796 |