Reinventando o método de Aristarco
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2021
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Resumo
The greek mathematician and astronomer Aristarchus of Samos, 3rd century BC, was the first person to
systematize a method to estimating relative distances and sizes between Earth, Sun and Moon. He was also the
first to propose that the Earth revolves around the Sun. In the present work, we carried out a review, in modern
language, of the method proposed by Aristarchus to estimate the distance from the Sun to the Earth, S, in
relation to the distance from the Moon to the Earth, L. After that we present the model proposed by us to do
the experimental determination of the ratio S/L and the angular diameter of the Sun and Moon, as well as the
experimental setup used. We performed two experiments, one with the Crescent Moon and one with the Waning
Moon. We emphasize that our main objective is to deal with calculating astronomical distances with the use of
geometric models. We expect that teachers of mathematics, physics and astronomy will use this material in their
classes and presentations, discussing with students the technical and historical difficulties and the physical and
geometric aspects involved. And, if possible, that they reproduce the measures.
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Aristarco, Astronomia, Heliocentrismo, Aristarchus, Heliocentrism, Astronomy
Citação
FREITAS, Lucas V.; SANTUCCI, Rafael M.; MARQUES, Ivo A. Reinventando o método de Aristarco. Revista Brasileira de Ensino de Física, São Paulo, v. 43, e20210062, 2021. DOI: 10.1590/1806-9126-RBEF-2021-0062. Disponível em: https://www.scielo.br/j/rbef/a/qRRPqpyypT4g5STyjLjMXLp/abstract/?lang=pt. Acesso em: 11 maio 2023.