Arrival of ELT secondary at SCHOTT annealing facility

The ELT secondary mirror blank — freshly cast from ZERODUR® glass-ceramic — arrives at the SCHOTT 4-metre blank annealing facility in Mainz, Germany in May 2017. The mirror blank, currently a block of material, will be ground and polished to produce the finished mirror.

Credit:

SCHOTT/ESO

About the Image

Id:eso1715g
Type:Photographic
Release date:22 May 2017, 12:00
Related releases:eso1715
Size:5760 x 3840 px

About the Object

Type:Unspecified : Technology
Category:ELT

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