Planetary and Cometary Astronomy at the Collegio Romano
摘要
Jesuit astronomers working at the Collegio Romano Observatory have made many contributions in the field of planetary astronomy: De Vico and Dumouchel studied Halley’s comet, while Secchi was a pioneer in cometary spectroscopy, studying the surface of the Moon, Saturn’s shape, and Mars’ surface; he discovered a comet in 1853, and in 1869 he was the first to observe the spectrum of Uranus.