John Hagen
John Hagen
JohannGeorg Hagen, was an Austrian Jesuit priest and astronomer. Naturalized American citizen he was called to Rome by Pope Pius X in 1906 to be the first Jesuit director of the new Vatican Observatory...
JohannGeorg Hagen, was an Austrian Jesuit priest and astronomer. Naturalized American citizen he was called to Rome by Pope Pius X in 1906 to be the first Jesuit director of the new Vatican Observatory...
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