Fr. Johan Stein, S.J.

Fr. Johan Stein, S.J.

Fr. Johan Stein, S.J. Fr. Johan Stein S.J. (1871-1951) served as Director of the Vatican Observatory from 1930 to 1951. He oversaw a modernization of the Observatory and also its relocation to Castel Gandolfo in the 1930s. The crater Stein on the far side of the moon...
Fr. Patrick Treanor, S.J.

Fr. Patrick Treanor, S.J.

Fr. Patrick Treanor, S.J. Fr. Patrick Treanor S.J. (1920-1978) served as Director of the Vatican Observatory from 1970 to 1978. His research was concerned principally with polarized light from stars and interstellar media, with the metallicity of various spectral...
Fr. Daniel O’Connell, S.J.

Fr. Daniel O’Connell, S.J.

Fr. Daniel O’Connell, S.J. Fr. Daniel O’Connell S.J. (1896-1982) served as Director of the Vatican Observatory from 1952 to 1970. Under his leadership the Observatory installed the Schmidt Telescope in this building in...