INTERNATIONAL
- International Astronomical Union (IAU)
- European Southern Observatory (ESO)
- International Ultraviolet Explorer (IUE)
Austria
Bulgaria
- Rozhen Observatory - unofficial
Czech Republic
- Ceska astronomicka spolecnost
- Brno - Astronomicky ustav MU
- Brno - Hvezdarna a planetarium Mikulase Kopernika
- Ceske Budejovice - Hvezdarna a planetarium
- Klet - hvezdarna
- Ondrejov - AsU AV CR
- Ostrava - Hvezdarna a Planetarium
- Praha - AU MFF UK
- Praha - Hvezdarna a planetarium hlavniho mesta Prahy (Stefanikova hvezdarna, Planetarium Praha, Hvezdarna Dablice)
- Upice - Hvezdarna
- Valasske Mezirici - Hvezdarna
- Vlasim - Hvezdarna
Estonia
- Toravere - Tartu Observatory
France
- Meudon - Observatoire de Paris
- Nice - Observatoire de Cote d'Azur
Germany
- Garching - Max-Planck-Institut fuer Astrophysik
- Garching - Max-Planck-Institut fuer Extraterrestrische Physik
- Hamburg - Hamburger Sternwarte
- Heidelberg - Landessternwarte Koenigstuhl
- Heidelberg - Max-Planck-Institut fuer Astronomie
- Kiel - Institute of Astronomy and Astrophysics
- Muenchen - Universitaetssternwarte
- Potsdam - Lehrstuhl Astrophysik
- Potsdam - Astrophysikalisches Institut (AIP)
- Wendelstein - Observatory
Hungary
Netherlands
Norway
- Tromso - Nordlysobservatoriet - Universitetet i Tromso (The Auroral Observatory - University of Tromso)
Russia
Slovakia
- Slovenska astronomicka spolocnost
- Tatranska Lomnica - AsU SAV
Spain
Sweden
- Uppsala - Astronomical Observatory
USA
- American Astronomical Society (AAS)
- The Astronomical Society of the Pacific (ASP)
- Bartol Research Institute
- Kitt Peak National Observatory (KPNO)
- National Aeronautics and Space Administration (NASA)
LISTS OF WWW SERVERS
Author: Jiri Kubat (12.7.2000).
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