University 
Professional / Public observatory 
Amateur / private observatory Watertown, NY - USA
Astrophotography
GM2000 HPS II C
OMAN, Muscat
Astrohotography, Amateur Astronomy
GM2000 HPSII C
USA, Miami
Astrophotography
GM1000 HPS
USA, Albuquerque
Astrophotography
GM2000 HPS II C
USA, Austin
Astrophotography
GM1000 HPS
Römerberg, Germany
Astrophotography
GM2000 QCI
San Diego, California, Stati Uniti
Astrophotography
GM1000 HPS
CANADA, Montreal
Amateur Astronomy
GM1000 HPS
Rodewish Observatory
GERMANY, Rodewish
Research, Education
GM4000 HPSII
AZ2000 HPS
Oldenburg University
Oldenburg
Research, Education
GM3000 HPS
Salt Lake City, Utah, Stati Uniti
Astrophotography
GM1000 HPS
Astrophotography
GM1000 HPS
Katikati, New Zealand
Astrophotography
GM1000 HPS
Taiwan: Pingtung
Education
GM3000 HPS
Enbacka Observatory
Amateur Astronomy
GM2000 HPS II
French Polynesia
Amateur Astronomy
GM2000 HPS II
Argentina
Research
GM2000 HPS II
El Sauce Observatory
Chile, El Sauce
Telescopes hosting
GM4000 HPS II
USA, Houston
Amateur Astronomy
GM2000 HPS II
USA, Rio Verde
Astrophotography
GM1000 HPS
USA, Connecticut
Astrophotography
GM2000 HPS II
USA, Phoenix
Astrophotography
GM2000 HPS II
USA, Arizona
Amateur Astronomy
GM2000 HPS II
Caltech
USA, Pasadena
Research
GM3000 HPS
USA, Clover
Astrophotography
GM2000 HPS II
USA, Georgia
Astrophotography
GM2000 HPS II
USA, San José
Amateur Astronomy
GM3000 HPS
USA, North Carolina
Amateur Astronomy
GM3000 HPS
USA, Maryland
Amateur Astronomy
GM3000 HPS
USA, Hanksville
Planetary Science
GM2000 HPS II
USA, Seattle
Astrophotography
GM1000 HPS
Sweden, Väddö
Astrophotography
GM2000 HPS II
France (Southern)
Astrophotography
GM2000 HPS II
Spain, Barcelona
Amateur Astronomy
GM2000 HPS II
Norway, Ytre Enebakk
Astrophotography
GM2000 HPSII
USA, Florida
Astrophotography
GM1000 HPS
Switzerland, Renens
Astrophotography
GM1000 HPS
Turkey, Ankara
Amateur Astronomy
GM4000 HPS II
Spain, Matadepera
Astrophotography
GM2000 HPS II
UK, Somerset
Astrophotography
GM1000 HPS
Barcelona, Spain
Astrophotography, amateur astronomy
GM3000 HPS
Germany, Kirchheim
Amateur astronomy, astrophotography
GM1000 HPS
GM2000 HPS II
USA, Mobile
Astrophotography
GM1000 HPS
Astrohotography
GM1000 HPS
Switzerland, Ammerzwil
Astrophotography
GM1000 HPS
USA, Los Alamos
Astrophotography
GM1000 HPS
USA, Tucson
Astrophotography
GM1000 HPS
Italy, Rome
Astrophotograpy, Popular Science
GM2000 QCI
USA, Phoenix
Astrophotography
GM1000 HPS
Netherlands, Castricum
Amateur Astronomy
GM3000 HPS
Vienna, Austria
Astrophotography
GM1000 HPS
Riverdale, Iowa, USA
Research
GM1000 HPS
Marana, AZ, USA
Astrophotography
GM1000 HPS
Fregenal de la Sierra, Spain
Remote Astrophotography
GM2000 HPSII
USA, Texas
Astrophotography, Research
GM1000 HPS
GM2000 HPSII
Spain, Gibraltar
Astrophotography
GM1000 HPS
USA, Rowe (NM)
Astrophotography
GM1000 HPS
Spain Camarma de Esteruelas, Spagna
Research
GM2000 HPS
Stuttgart Observatory
Germany, Stuttgart
Education
GM3000 HPS
France, Thionville
Astrohotography
GM1000 HPS
Greece, Athens
Astrophotography
GM1000 HPS
USA, San José
Astrophotography
GM1000 HPS
Germany, Heilbronn
Education
GM1000 HPS
Special Astrophysical Observatory,
Russian Academy of Sciences
Russia
Research
GM4000 HPS
Sweden, Västerås
Popular science, Astrophotography
GM2000 HPS
China, Muztagh Ata
Research
GM2000 HPSII network
Tibet, China
Research, Education
GM3000 HPSII and GM4000 HPSII
Bangkok Tailandia
Astrophotography
GM1000 HPS
Grimstad, Norway
Astrophotography
GM2000 HPSII
Australia, Queensland
Amateur Astronomy
GM3000 HPS
Russia, Mordovia
Astrophotography
GM2000 HPS
USA, Southern California
Astrohptpgraphy
GM1000 HPS
Provo, Utah, USA
Astrophotography
GM1000 HPS
Spain, Albanya
Research, Popular Science
GM3000 HPS
Spain, Tijarafe
Astrometry, Supernovae research
GM4000 QCI and GM2000 QCI
Switzerland, Zurich
Astrophotography
GM2000 HPS
Salisbury, Wiltshire, Regno
Astrophotography
GM1000 HPS
Sidney, Australia
Astrophotography
GM2000 HPS
Biedermannsdorf, Austria
Astrophotography
GM2000 QCI
Linz, Austria
Astrophotography
GM2000 QCI
Pacheiner Alpenhotel
Arriach, Austria
Astrophotography, Popular Science
GM2000 HPS
Traiskirchen, Austria
Astrophotography, Amateur Astronomy
GM3000 HPS
Balen, Belgium
Astrometry, Photometry
GM2000 QCI
Ghent University
Gand, Belgium
Research
GM3000 HPS
Liège, Belgium
Astrometry
GM2000 HPS
Kruibeke, Belgium
Astrometry
GM2000 QCI
Olmen Observatory
Olmen, Balen, Belgium
Astrometry
GM2000 QCI
Turnhout, Belgium
Astrophotography
GM2000 QCI
Sofia Astronomical Association
Sofia, Bulgaria
Astrophotography, Popular Science
GM4000 HPS
Dalhousie and Toronto University
EUREKA station, Ellesmere island, Canada
Atmospheric research
AZ2000
Ottawa, Canada
Astrophotography
GM2000 HPS
DLR (German Space Agency)
Cile, Cerro Armazones, Antofagasta
BEST II (Berlin Exoplanet Search Telescope) program
GM4000 QCI
Zagreb Astronomical Observatory
Zagreb, Croatia
Education, Practice
GM4000 QCI
Brno Observatory and Planetarium
Brno, Czech Republic
Education Popular Science, Astrometry
GM4000 QCI
Prague, Czech Republic
Astrophotography
GM4000 QCI
Rokycany, Czech Republic
Astrophotography
GM4000 QCI
Teplice Observatoy and Planetarium
Teplice, Czech Republic
Popular Science, Education
GM4000 HPS
Kouvola, Finland
Astrometry
GM3000 HPS
Oulu, Finland
Astrophotography
GM1000 HPS
Colmar, France
Astrophotography
GM2000 HPS
Cité de l'Espace
Toulouse, France
Popular Science, Education
GM4000 HPS
Grenoble, France
Astrophotography
GM1000 HPS
Verclause, France
Astrophotography
GM2000 QCI
Bad Schwartau , Germany
Astrophotography
GM2000 QCI
Galilei Observatory
Germany, Barleben
Popular Science
GM2000 QCI
Bavaria, Germania
Astrophotography, Popular Science
GM2000 HPS
Bavaria, Germania
Astrophotography
GM2000 QCI
Rossberg Observatory
Chamerau, Germany
Astrophotography, popuar science
GM4000 HPS
Feurerstein Observatory
Ebermannstadt, Germany
Astrophotography, Popuar Science
GM4000 QCI
Eisenach, Germany
Astrophotography
GM2000 HPS
Friolzheim, Germany
Astrophotography
GM3000 HPS
Max Plank Institute for Astrophysics
Garching bei München, Germany
Education, Student's practice, Research
GM4000 QCI
Gilching , Germany
Astrophotography
GM2000 QCI
Max Plank Institute for Astronomy
Heidelberg, Germany
Student’s Practice and research
GM4000 QCI
Hochstadt, Germany
Astrophotography
GM2000 QCI
Geschwister-Scholl-Gymnasium
Löbau, Germany
Education, Student’s practice
GM2000 QCI
Munich Technical University
Munich. Germany
Education, Student's practice, Research
GM4000 QCI
Munich, Germany
Amateur astronomy
GM4000 QCI
Oberallgäu Observatory
Immenstadt im Allgäu, Germany
Popular science, Astrophotography
GM3000 HPS
Potsdam University
Potsdam, Germany
Spectroscopy and Astrometry
GM4000 QCI
Reutlingen Observatory and Planetarium
Reutlingen, Germany
Popular Science, Education, Astrophotography
GM4000 QCI
Saarland, Germany
Astrophotography
GM4000 QCI
Schmitten, Germany
Astrophotography
GM2000 QCI
Weikersheim, Germany
Astrophotography, Popular Science
GM4000 ACI
Luxembourg
Astrophotography, Spectroscopy
GM2000 HPS
Vidor, Italy
Astrophotography
GM2000 QCI
Trinitapoli, Italy
Astrophotography
GM1000 HPS
Trieste, Italy
Astrophotography
GM1000 HPS
Le Pleiadi Observatory
Taverna, Italy
Astrophotography, Popular Science
GM4000 HPS
Sormano Astronomical Observatory
Sormano, Italy
Astrometry, Astrophotography, Popular Science
GM4000 QCI
Siena University
Siena, Italy
Research, Education
GM2000 QCI
Sessa Aurunca, Italy
Astrophotography, Popular science
GM2000 QCI
San Benedetto Po, Italy
Supernovae, Astrometry, Photometry, Astrophotography, Popular Science
GM4000 HPS
INAF, Rome Astronomical Observatory
Monte Porzio Catone, Italy
Research, Education, Popular Science
GM4000 QCI
Montemaggiore Observaory
Supernovae research, Popular Science
GM2000 HPS
Porziano Observatory
Porziano, Italy
Supernova research, Astrophotography, Popular Science
GM4000 QCI
Ponte di Nona, Rome, Italy
Spectroscopy, CCD astronomy, Solar observations
GM2000 QCI
F.Fuligni Observatory
Rocca di Papa, RM
Popular Science, Photometry, Astrometry, Astrophotography
GM2000 QCI
Rieti, Italy
Astrometry
GM2000 QCI
Promiod, Italy
Astrophotography
GM2000 QCI
Ponte in Valtellina, Italy
Astrometry, Amateur Astronomy, Popular Science
GM4000 QCI
San Marcello Pistoiese, Italy
Astrometry, Astrophotography
GM2000 QCI
Piombino, Punta Falcone, Italy
Astrometry, Astrophotography, Popular Science
GM2000 HPS
OAVDA Observatory
Lignan, Italy
Research, Education, Popular Science
GM2000 QCI Network
Monte Galbiga, Italy
Popular Science, Amateur Astronomy
GM4000 QCI
Marana di Crespadoro Observatory
Marana di Crespadoro, Italy
Astrometry, Photometry, Popular Science
GM2000 QCI
Lazzarello di Pecorara, PC
Astrophotography, Popular Science
GM2000 QCI
Iota Scorpii Observatory
La Spezia, Italy
Amateur Astronomy
GM3000 HPS
Salerno University
Frisciano, Italy
Education, Popular Science
GM4000 HPS
Monte Baldo Observatory
Ferrara di Monte Baldo, Itay
Astrometry, Photometry, Popular Science
GM4000 QCI
Cuorgné, Italy
Astrophotography, Popular Science
GM2000 QCI
Peter Anich Solar Observatory
Cornedo all'Isarco, Italy
Solar Astronomy, Popular Science
GM4000 QCI
Dolianova, Italy
Astrophotography
GM2000 HPS
Leopoldo del Re Observatory
Capracotta
Popular Science, Amateur Astronomy
GM4000 QCI
Canino, Italy
Astrophotography
GM2000 QCI
IPC Brunico High School
Brunico, Italy
Education, Astrophotography, Amateur Astronomy
GM2000 QCI
Bolzano, Italy
Astrophotography
GM2000 QCI
Belluno, Italy
Astrophotography
GM2000 QCI
Hermosillo, Mexico
Astrophotography, Amateur astronomy
GM4000 HPS
Zagora, Morocco
Astrophotograpy, Amateur Astronomy
GM1000 HPS and GM2000 HPS
Hakos, Namibia
Astrophotography
GM4000 HPS
Beilen, Netherland
Astrophotography
GM2000 QCI
Hellendoorn Observatory
Hellendoorn, Netherland
Education, Popular Science
GM4000 QCI
Limburg, Netherland
Astrophotography
GM2000 QCI
Hamar Katedrale Skole
Hamar, Norway
Student’s Practice, Amateur Astronomy
GM2000 QCI
Norway, Kapp
Astrophotography
GM2000 HPSII
AWIPEV Arctic Research Base
Ny-Ålesund, Svalbard, Norway
Atmospheric research
AZ2000
Obserwatorium Astronomiczne im. Tadeusza Banachiewicza
Lubomir, Wiśniowa, Poland
Education, Popular Science
GM4000 QCI
Bucarest, Romania
Amateur Astronomy
GM4000 QCI
Kazan Federal University
Tatarstan, Russia
Education, Student's practice, Research
GM4000 HPS
Barcelona, Spain
Astrometry
GM2000 HPS
Bilbao University
Bilbao, Spain
Planetary Science
GM4000 QCI
La Palma, Spain
Astrophotography
GM4000 HPS
Hambourg Univeristy
Mallorca, Spain
High resolution spectroscopy
GM4000 HPS
Nerpio, Spain
Remote Astrophotography
GM2000 QCI
Espacio 042 Observatory
Quarte, Spain
Education, Student's practice, Astrophotography
GM2000 QCI
Lomma, Sweden
Astrophotography
GM1000 HPS
Lund University
Lund, Sweden
Education, Student's practice, Research
GM2000 HPS
Saltsjöbaden, Sweden
Astrophotography
GM2000 HPS
Skultuna, Sweden
Photometry, Astrophotography
GM2000 HPS
Bulach Observatory
Bulach, Switzerland
Popular Science, Astrophotography
GM4000 QCI
Camorino, Switzerland
Astrometry, Amateur Astronomy
GM2000 QCI
Geneve, Switzerland
Astrophotography
GM4000 QCI
Kreuzlingen Observatory
Kreuzlingen, Switzerland
Popular Science
GM4000 QCI
Steinhuserberg, Switzerland
Astrophotography
GM2000 QCI
Robotic Solar Observation Telescope
Niedermuhlern, Switzerland
Solar research
GM3000 HPS
Bangkok, Thailand
Astrophotography
GM4000 HPS
Bangkok, Thailand
Astrophotography
GM3000 HPS
Bangkok, Thailand
Astrophotography
GM4000 HPS
Telecommunication Company
Ankara, Turkey
Satellite position monitoring
GM2000 HPS
Instanbul, Turkey
Astrophotography
GM2000 QCI
Oxshott, UK
Photometry, Astrophotography
GM2000 HPS
GM2000 HPS
GM3000 HPS
Somerset, UK
Astrophotography
GM1000 HPS
Stafford, UK
Astrophotography
GM1000 HPS
Abu Dhabi, UAE
Astrophotography, Popular Science
GM4000 HPS
Dubai, UAE
Astrophotography
GM2000 HPS
Sharjah University
Sharjah, UAE
Education, Student's practice
GM4000 HPS
El Segundo, USA
Astrophotography
GM3000 HPS
Lincoln (MA), USA
Amateur Astronomy
GM4000 HPS
Lincoln (NE), USA
Astrophotography, Photometry
GM2000 QCI
New York area, USA
Astrophotography
GM2000 HPS
New York State, USA
Astrophotography
GM2000 HPS
Tempe, USA
Astrohotography
GM2000 HPS
University
University
University
Professional / Public observatory
University
University
Amateur / private observatory
Professional / Public observatory
Professional / Public observatory
University
University
University
