Affiliation: | Copernicus Astronomical Centre, Bartycka 18, 00-716 Warsaw, Poland;Institute of Astronomy, Russian Academy of Sciences, Pyatnitskaya Str. 48, 109017 Moscow, Russia;Institut für Astronomie, Universität Wien, Türkenschanztrasse 17, A-1180 Wien, Austria;Warsaw University Observatory, Al. Ujazdowskie 4, 00-478 Warsaw, Poland |