Description: (Italian Jesuit Priest and Astrophysicist, Who Made the First Survey of the Spectra of Stars)
Angelo Secchi S.J., an Italian Catholic priest and astronomer, made significant contributions to the field of astronomy. He served as the director of the observatory at the Pontifical Gregorian University for almost thirty years. Secchi was a pioneer in astronomical spectroscopy and was instrumental in enhancing our knowledge of stars, including identifying the Sun as a star. His research formed the basis for further advancements in astronomy and spectroscopy, influencing the scientific community for years to come.