ELT secondary mirror blank in the streets of Mainz

Transfer of ELT secondary mirror blank to the SCHOTT 4-metre blank annealing facility in Mainz, Germany in May 2017. The blank was cast out of ZERODUR®, a material originally developed for astronomical telescopes in the late 1960s. Zerodur® has almost no thermal expansion even when subjected to large temperature fluctuations, is highly chemically resistant, and can be polished to a high standard of finish.

Të drejtat:

SCHOTT/ESO

Rreth fotografisë

Id:eso1715e
Tipi:Fotografik
Data e Publikimit:Maj 22, 2017, 12:00 CEST
Publikime të ngjashme:eso1715
Përmasat:3282 x 5244 px

Rreth objektit

Tipi:Unspecified : Technology
Kategori:ELT

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