- Izmir Turk College Planetarium
- Ege University
External person
- Bulgarian Academy of Sciences
External person
- Bulgarian Academy of Sciences
External person
- University of Johannesburg
External person
- Universidad Nacional Autónoma de México
External person
- Universidad Nacional Autónoma de México
External person
- Bulgarian Academy of Sciences
External person
- Universidad Nacional Autónoma de México
External person
- Ege University
- Inonu University
External person
- Virginia Polytechnic Institute and State University
External person
- Observatory and Planetarium of Johann Palisa
- VŠB – Technical University of Ostrava
External person
- Charles University
- Faculty of Mathemathics and Physics
- Observatory and Planetarium of Johann Palisa
- VŠB – Technical University of Ostrava
- Czech Academy of Sciences
External person
- Observatory and Planetarium of Johann Palisa
- VŠB – Technical University of Ostrava
External person
- American Association of Variable Star Observers
External person
- Groupe Européen d'Observation Stellaire (GEOS)
External person
- Observatory and Planetarium of Johann Palisa
- VŠB – Technical University of Ostrava
External person
- CSIC
- CSIC - Institute of Astrophysics of Andalusia
External person
- Observatoire du Bois de Bardon
- Groupe Européen d'Observation Stellaire (GEOS)
- Association AstroQueyras
External person
- CSIC
- CSIC - Institute of Astrophysics of Andalusia
External person
- Beersel Hills Observatory
External person
- South African Astronomical Observatory
- Southern African Large Telescope Foundation
- Southern African Large Telescope Foundation
External person
- CSIC
- CSIC - Institute of Astrophysics of Andalusia
External person
- American Association of Variable Star Observers
External person
- National Observatory of Athens
External person
- Observatoire du Bois de Bardon
- Association AstroQueyras
External person
- CAS - National Astronomical Observatories
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- CSIC
- CSIC - Institute of Astrophysics of Andalusia
External person
- Club d'Astronomie Lyon Ampère
- Club d'Astronomie Lyon Ampère
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- Sulphur Flats Observatory
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- Norwegian Astronomical Society
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- Ataturk University
- Akdeniz University
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- Observatory and Planetarium of Johann Palisa
- VŠB – Technical University of Ostrava
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- Royal Observatory of Belgium
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- South African Astronomical Observatory
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- Czech Academy of Sciences
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- Akdeniz University
- Ankara University
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- Canakkale Onsekiz Mart University
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- Norwegian Astronomical Society
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- Norwegian Astronomical Society
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- Charles University
- Faculty of Mathemathics and Physics
- Czech Academy of Sciences
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- Astronomical Observatory of the Autonomous Region of the Aosta Valley (OAVdA)
- University of Padua
- Astronomical Observatory of the Autonomous Region of the Aosta Valley (OAVdA)
External person
- Bulgarian Academy of Sciences
External person
- National and Kapodistrian University of Athens
External person
- Observatory and Planetarium of Johann Palisa
- VŠB – Technical University of Ostrava
External person
- Observatoire du Bois de Bardon
- Association AstroQueyras
External person
- Astronomical Observatory of the Autonomous Region of the Aosta Valley (OAVdA)
- Astronomical Observatory of the Autonomous Region of the Aosta Valley (OAVdA)
External person
- Astronomical Observatory of the Autonomous Region of the Aosta Valley (OAVdA)
- Astronomical Observatory of the Autonomous Region of the Aosta Valley (OAVdA)
External person
- Royal Observatory of Belgium
External person
- Crimean Astrophysical Observatory RAS
External person
- CSIC
- CSIC - Institute of Astrophysics of Andalusia
External person
- Societá Astronomica le Pleiadi
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- Université libre de Bruxelles
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- Canakkale Onsekiz Mart University
External person
- CSIC
- CSIC - Institute of Astrophysics of Andalusia
External person
- Crimean Astrophysical Observatory RAS
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- Université libre de Bruxelles
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- Royal Observatory of Belgium
External person
- Osservatorio Astronomico di Brera
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- Observatoire des Trois Korrigans
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- National Institutes of Natural Sciences - National Astronomical Observatory of Japan
- The Graduate University for Advanced Studies
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- Adam Mickiewicz University in Poznań
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- Sorbonne Université
- Observatoire de Paris
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- Autonomous University of Barcelona
- CSIC - Institute of Space Sciences
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- National Institutes of Natural Sciences - National Astronomical Observatory of Japan
- The Graduate University for Advanced Studies
External person
- CSIC
- CSIC - Institute of Astrophysics of Andalusia
External person
- Crimean Astrophysical Observatory RAS
External person
- Center of Research in Astronomy, Astrophysics and Geophysics
External person
- Adam Mickiewicz University in Poznań
External person
- Observatoire du Bois de Bardon
External person
- Osservatorio Astronomico di Brera
External person
- CSIC
- CSIC - Institute of Astrophysics of Andalusia
External person
- Leibniz Institute for Astrophysics Potsdam
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- Universidad Autonoma de Baja California
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- University of South Africa
- Brunel University London
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- Center of Research in Astronomy, Astrophysics and Geophysics
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- Observatoire de Paris
- National Academy of Sciences of the Republic of Armenia
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- Adam Mickiewicz University in Poznań
External person
- Royal Observatory of Belgium
External person
- Center of Research in Astronomy, Astrophysics and Geophysics
External person
- CSIC
- CSIC - Institute of Astrophysics of Andalusia
External person
- Karl Schwarzschild Observatory
External person
- Osservatorio Astronomico di Brera
External person
- Center of Research in Astronomy, Astrophysics and Geophysics
External person
- Osservatorio Astronomico di Brera
- University of Insubria
External person
- Center of Research in Astronomy, Astrophysics and Geophysics
External person