O European Extremely Large Telescope
O European Extremely Large Telescope (E-ELT), com um espelho primário de 39 metros de diâmetro, será o maior olho no céu do mundo, quando estiver operacional no início da próxima década. O E-ELT lidará com as maiores questões científicas da nossa época, incluindo a descoberta de planetas do tipo terrestre em órbita de outras estrelas, nas zonas habitáveis, onde pode existir vida - um Santos Graal da astronomia observacional moderna.
O design do telescópio propriamente dito é revolucionário, baseando-se num esquema inovador de cinco espelhos, o que originará uma qualidade de imagem excepcional. O espelho primário é composto por quase 800 segmentos, cada um com 1,4 metros de largura mas apenas 50 mm de espessura. O design óptico inclui um espelho secundário de 4,2 metros de diâmetro, maior que qualquer dos espelhos primários dos telescópios do ESO instalados em La Silla.
Espelhos adaptativos estão incorporados na óptica do telescópio para compensar a pouca nitidez das imagens estelares, introduzida pela turbulência atmosférica. Um destes espelhos é suportado por mais de 6000 actuadores que podem distorcer a sua forma mil vezes por segundo.
O telescópio contará com vários instrumentos científicos. Será possível alternar entre os vários instrumentos numa questão de minutos. O telescópio e a cúpula podem também mudar a posição para onde apontam no céu e começar uma nova observação em muito pouco tempo.
Créditos:ESO
Sobre a imagem
| Id: | ann12096a |
| Língua: | pt |
| Tipo: | Ilustração |
| Data de divulgação: | 4 de Dezembro de 2012 às 18:00 |
| Anúncios relacionados: | ann12096 |
| Tamanho: | 3391 x 2436 px |
Sobre o objeto
| Nome: | Extremely Large Telescope |
| Tipo: | Unspecified : Technology : Observatory : Telescope |
Formatos de imagens
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