A model for the Sun apparent movement from a geocentric perspective

Authors

  • Fernando Siqueira da Silva Universidade de Caxias do Sul - RS
  • Francisco Catelli UCS - Rio Grande do Sul
  • Odilon Giovannini Universidade de Caxias do Sul-RS

DOI:

https://doi.org/10.5007/2175-7941.2010v27n1p7

Abstract

The present work has as main objective to build a model to identify the sun apparent movement (SAM) as well as estimate the time interval in which it is above the horizon, to anywhere in the world and in any season. We begin with a brief reflection on the genesis of astronomy and some of its basic concepts, from which the model is built. The model basically consists of a transparent cylinder, in which are shown the paths of the SAM over the year. As applications of the model, are proposed some examples, such as the duration of "daylight" in different places of the globe. Making and using this model, besides the low cost and easy feasibility, provides a good understanding of the SAM.

Author Biographies

Fernando Siqueira da Silva, Universidade de Caxias do Sul - RS

Francisco Catelli, UCS - Rio Grande do Sul

Graduação em Licenciatura Em Física pela Universidade Federal do Rio Grande do Sul (1976), mestrado em Engenharia de Minas, Metalúrgica e de Materiais pela Universidade Federal do Rio Grande do Sul (1981) e doutorado em Educação - Universite Laval (1995).

Mais informações: Currículo Lattes - CNPq.

Odilon Giovannini, Universidade de Caxias do Sul-RS

Published

2010-01-01

How to Cite

Silva, F. S. da, Catelli, F., & Giovannini, O. (2010). A model for the Sun apparent movement from a geocentric perspective. Caderno Brasileiro De Ensino De Física, 27(1), 7–25. https://doi.org/10.5007/2175-7941.2010v27n1p7

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