Telescópio gigante do futuro chinês

Telescópio gigante do futuro chinês
Informações gerais
Administrador
Tipo de telescópio
óptico
estrutura ou edifício proposto (d)
Dados técnicos
Diâmetro
30 m
Geografia
Localização

O Telescópio Gigante do Futuro Chinês (CFGT) é um telescópio óptico proposto com um espelho primário de 30 metros de diâmetro.[1]

Características

O Telescópio Gigante do Futuro Chinês tem uma razão focal primária de 1,2. Seu espelho primário é segmentado com 1020 subespelhos anulares dispostos em 17 anéis concêntricos. Cada segmento tem comprimento e largura médios de 0,8 m. Além de um foco Cassegrain convencional, quatro focos Nasmyth em duas plataformas de deck duplo em ambos os lados também estão presentes. Existe um foco Coudé previsto para esse arranjo interferométrico.[2] O espelho secundário comparativamente pequeno tem 2,74 m de diâmetro, que servirá para correções ativas. Outras características incluem:

  • Subespelhos anulares parciais
  • Um dos espelhos planos coude é asférico; melhor qualidade de imagem é obtida de tal sistema.
  • Um par de prismas de lente é usado em um sistema de amplo campo de visão para obter uma melhor qualidade de imagem e corrigir a dispersão atmosférica.[3]

Referências

  1. Li, Guoping; Yang, Dehua (29 de setembro de 2004). «Preliminary structure design and analysis of the Chinese Future Giant Telescope». SPIE. doi:10.1117/12.551172. Consultado em 30 de abril de 2021 
  2. «2006IAUS..232..391C Page 391». adsabs.harvard.edu. Consultado em 30 de abril de 2021 
  3. Li, Guoping; Yang, Dehua (29 de setembro de 2004). «Preliminary structure design and analysis of the Chinese Future Giant Telescope». International Society for Optics and Photonics: 204–215. doi:10.1117/12.551172. Consultado em 30 de abril de 2021 
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