Measuring the reflectivity of the 8.2-m zerodur mirror

The reflectivity of the fresh aluminium layer is measured. A consistent value of about 92 percent was found - this is excellent and indicates full success of the complex coating process.

Credit:

ESO

About the Image

Id:eso9950l
Type:Photographic
Release date:3 December 1999
Related releases:eso9950
Size:1280 x 960 px

About the Object

Name:Mirror, Very Large Telescope
Type:Unspecified : Technology : Observatory : Telescope
Category:Paranal

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