Hauling Glass

The ELT’s M2 Blank leaving SCHOTT’s factory in Mainz, Germany — safely stowed in an extra-large transport box The mirror blank will be transported to France for final grinding and polishing by Safran Reosc.

M2 will be the largest ever secondary mirror employed on a telescope, as well as the largest convex mirror ever produced. Fabricating this highly convex, aspherical mirror is a considerable challenge — and the result will be a truly remarkable example of pioneering optical engineering. The secondary mirror and its support system — weighing 12 tonnes —  will hang upside-down high above the 39-metre primary mirror.

Credit:

SCHOTT

About the Image

Id:ann19003d
Type:Photographic
Release date:16 January 2019, 10:00
Related announcements:ann19003
Size:4000 x 2667 px

About the Object

Name:Extremely Large Telescope
Type:Unspecified : Technology
Category:ELT

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