Buenaventura Suarez, S.J. (1679-1750) Part 1: Telescope maker, Jovian satellites observer

During the first half of the 18th century, Father Buenaventura Suárez performed a series of astronomical observations in the Jesuit Reductions of Paraguay. His observations were published in prestigious European journals such as the Philosophical Transactions of the Royal Society and the Acta of the Royal Scientific Society of Uppsala. Working in the antipodes of the Jesuit astronomical centers of Europe and Asia, Suárez was not cut off from their mainstream activities. Educated at Cordoba, present day Argentina, under the Jesuit scholarly tradition, he was familiar with the observations and astronomical knowledge of his time. In spite of being an untutored astronomer he was capable of constructing his own telescopes, perhaps the first telescopes ever built in the Americas. Our present work analyzes the happy local circumstances that allowed him to produce his own astronomical instruments in Paraguay. By examining factual evidence from fictitious tales we show that, contrary to the common belief, Suárez was not provided with English telescopes for his observations. In addition we examine the circumstances and context of his observations on Jupiter's satellites, and the accuracy of his measurements. We show how his observations reached the Royal Society of London. Our findings prove that the politics of the Royal Society facilitated him this communication and it was not through a rather complicated network that Suárez sent London his data as was previously published. By examining factual accomplishments from alleged deeds we try to breakdown the mythology associated to this extraordinary personage. Durante la primera mitad del siglo 18, el Padre Buenaventura Suárez realizó una serie de observaciones astronómicas en las Reducciones jesuitas del Paraguay. Sus observaciones fueron publicadas en prestigiosas revistas europeas tales como las Transacciones de la Real Sociedad y el Acta de la Real Sociedad Científica de Upsala. Trabajando en las antípodas de los centros astronómicos jesuitas en Europa y Asia, Suárez no estuvo aislado de sus actividades convencionales. Educado en Córdoba, en la actual Argentina, bajo la tradición académica jesuita, él estuvo al tanto de las observaciones y conocimiento astronómico de su época. A pesar de no haber sido entrenado como astrónomo, fue capaz de construir sus propios telescopios, tal vez los primeros telescopios construidos en las Américas. El presente trabajo analiza las circunstancias propicias locales que le permitieron fabricar sus instrumentos astronómicos en el Paraguay. Mediante un examen de evidencias reales e