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

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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 : People Unspecified : Technology
Category:	ELT

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