BornSanta Fe, Argentina, 3 September 1678
DiedParaguay, 24 August 1750
The first native-born astronomer in the Western Hemisphere was Father Buenaventura Suárez, S. J. Assisted by Guarani Indians, Suárez constructed the telescopes for his mission observatory himself (including the grinding of lenses from native crystal) in the 1730s. His Southern Hemispheric observations included those of eclipses, comets, and occultations of Galilean satellites. Late in life, the Jesuits equipped Suárez with European-made telescopes. He wrote an almanac published in Spain and corresponded with Anders Celsius, Joseph Delisle, and other Old World astronomers.