The secondary mirror of the ELT is successfully cast

In May 2017 the casting of the secondary mirror (M2) blank for ESO’s Extremely Large Telescope (ELT) was completed by SCHOTT in Mainz, Germany. It is 4.2 metres in diameter and weighs 3.5 tonnes, making it the largest secondary mirror ever employed on a telescope and also the largest convex mirror ever produced.

Credit:

SCHOTT/ESO

About the Image

Id:eso1715i
Type:Photographic
Release date:22 May 2017, 12:00
Related releases:eso1715
Size:6720 x 4480 px

About the Object

Type:Unspecified : Technology
Unspecified : People
Category:ELT

Image Formats

Large JPEG
4.7 MB
Screensize JPEG
190.4 KB

 

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