segunda-feira, setembro 21, 2009

Astrónomo amador açoriano fotografa explosão em Júpiter

Um astrónomo amador dos Açores, engenheiro zootécnico de profissão, formado na Universidade dos Açores, foi um dos primeiros no mundo a registar o impacto de um corpo celeste em Júpiter, em Julho, culminando anos passados “com os olhos postos no céu”.
“Foi uma noite normal de observação, embora estivesse atento a notícias que davam conta do registo do impacto de um cometa ou asteróide no planeta Júpiter”, recordou João Porto.
Na noite de 25 de Julho, o astrónomo amador acabou “espantado” quando descobriu que tinha apanhado no seu telescópio o “trânsito da mancha provocada pelo impacto”, com uma dimensão de tal forma grande que lá poderia caber o planeta Terra.
A imagem que captou foi já publicada, por sugestão da Comissão Nacional do Ano Internacional de Astronomia, a quem comunicou de imediato o seu registo, também conseguido por um colega do Continente.
O maior planeta do sistema solar já tinha marcado este astrónomo amador há 15 anos, quando a fragmentação de um cometa lhe permitiu assistir a “um dos mais cativantes episódios” registados ao longo da sua vida.
“A 20 de Julho de 1994, registei um dos mais cativantes episódios, quando vi, através do telescópio, os efeitos do impacto do cometa Shoemaker-Levy, que se dividiu em 21 fragmentos”, salientou.
“A astronomia é um passatempo desde há muito. Sempre que existem condições atmosféricas, faço observações até de madrugada”, afirmou João Porto, sublinhando que “todos os dias o Universo regista alterações de segundo a segundo”.
(in Diário Insular)

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