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The Brazilian contribution to the observation of the transit of Venus

Published online by Cambridge University Press:  23 May 2005

Ronaldo Rogério de Freitas Mourão
Ronaldo Rogério de Freitas Mourão
Affiliation:
Museu de Astronomia e Ciências Afins do Rio de Janeiro and Universidade do Vale do Acaraú, Sobral, Ceará, Brazil email: [email protected]
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Abstract

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During the second half of the nineteenth century Brazilian astronomers participated in the observations of transit of Venus. In 1874 a Brazilian astronomer, Francisco Antônio de Almeida was sent by the Imperial Observatory to Nagasaki to use the “photographic revolver” invented by Jules Janssen. In 1882 three missions were sent by the Imperial Observatory (Brazil) to observe the transit in St Thomas (Antilles), Punta Arenas (Chile) and Olinda (Brazil). The value of the solar parallax obtained by the Brazilian Commission, led by Luís Cruls, was 8.$\rlap ^{\prime\prime}$808, representing at that time one of the most precise values.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2004 , Issue IAUC196 , June 2004 , pp. 154 - 160
Copyright
© 2004 International Astronomical Union