Temperature determination of ELT secondary mirror during annealing

Temperature determination of the ELT secondary mirror blank mould containing the still very hot ZERODUR® glass at first annealing. This took place at the SCHOTT 4-metre annealing facility in Mainz, Germany in May 2017.

Credit:

SCHOTT/ESO

About the Image

Id:eso1715j
Type:Photographic
Release date:22 May 2017, 12:00
Related releases:eso1715
Size:5760 x 3840 px

About the Object

Type:Unspecified : Technology
Unspecified : People
Category:ELT

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