FROM 9 TO 12 AND FINALLY 8: HOW MANY PLANETS ARE AROUND THE SUN?

Authors

  • Gonzalo Tancredi Depto. Astronomía – Fac. Ciencias. Observatorio Astronómico Los Molinos – Min. Educación y Cultura.

Keywords:

Solar System, planets, “dwarf planets”.

Abstract

The International Astronomical Union, the organization that groups together the professional astronomers over the world, has recently adopted a historical definition: What is a planet in the Solar System? Changing 76 years of tradition, our Solar System has now 8 planets and an increasing number of a new category of bodies named “dwarf planets”, among them is the former planet Pluto. In this article we present the reasons that support the resolution and we describe the participation of the Latin-American astronomers in the process to adopt it.

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Published

2007-12-01

How to Cite

Tancredi, G. (2007). FROM 9 TO 12 AND FINALLY 8: HOW MANY PLANETS ARE AROUND THE SUN?. Latin-American Journal of Astronomy Education, (4), 69–77. Retrieved from https://relea.ufscar.br/index.php/relea/article/view/100

Issue

No. 4 (2007)

Section

Articles

License

Este é um artigo publicado em acesso aberto (Open Access) sob a licença Creative Commons Attribution, que permite uso, distribuição e reprodução em qualquer meio, sem restrições desde que o trabalho original seja corretamente citado.