Escritos sobre o céu para homens ao mar - considerações e estudos sobre astrologia e astronomia dos séculos XV e XVI * Writings about the sky for men at the sea - considerations and studies about astrology and astronomy of the XV and XVI centuries

The writing of the history of astronomy was conducted by a few key points: the relation of this knowledge to voyages of expansion and improvement of nautical, the differentiation of astrology and the questioning of the place of science and superstition for the study of the sky, as well as the construction of structures of this knowledge by the writings that unfolded the subject. All these topics were developed to a greater or lesser extent in the historiographical studies of the past decades about the science of the sky. Thus, this text deals with the astronomy of the fifteenth and sixteenth centuries as an object of historiographical studies that privileged certain aspects of this lore, often converging with the refusal - which was already explicit in the writings of the fourteenth century - of what came to be affirmed in the future as something totally unrelated to astronomy - astrology.A escrita da história da astronomia foi conduzida por alguns pontos chaves: a relação deste saber com as viagens de expansão e o aprimoramento da náutica, a diferenciação da astrologia e o questionamento do lugar da ciência e da superstição para o estudo do céu, bem como a construção das estruturas deste saber pelos escritos que desdobraram o assunto. Todas estas tópicas foram desenvolvidas em maior ou menor grau nos estudos historiográficos das décadas passadas que trataram da ciência do céu. Assim, este texto trata da astronomia dos séculos XV e XVI como objeto de estudos historiográficos que privilegiaram determinados aspectos deste saber, confluindo muitas vezes com a recusa – que já estava explícita nos escritos quatrocentistas – daquilo que veio se afirmar no futuro como algo totalmente desvinculado da astronomia – a astrologia.*The writing of the history of astronomy was conducted by a few key points: the relation of this knowledge to voyages of expansion and improvement of nautical, the differentiation of astrology and the questioning of the place of science and superstition for the study of the sky, as well as the construction of structures of this knowledge by the writings that unfolded the subject. All these topics were developed to a greater or lesser extent in the historiographical studies of the past decades about the science of the sky. Thus, this text deals with the astronomy of the fifteenth and sixteenth centuries as an object of historiographical studies that privileged certain aspects of this lore, often converging with the refusal - which was already explicit in the writings of the fourteenth century - of what came to be affirmed in the future as something totally unrelated to astronomy - astrology.