VISTA main mirror recoated

The VISTA primary mirror in the vacuum chamber after recoating, just before being installed in the telescope. While the VLT´s mirrors are covered by aluminum, the VISTA mirror is coated with silver, because this element has a better reflectivity in the infrared. The VISTA primary mirror is 4.1 metres in diameter and is the most highly curved of its size. The extremely high curvature reduces the focal length, making the structure of the telescope extremely compact. VISTA can map large areas of the sky quickly and deeply. Unlike the other telescopes at Paranal Observatory, VISTA has its own coating plant installed in the same telescope building.

Credit:

ESO

About the Image

Id:vista_mirror_recoating
Type:Photographic
Release date:13 July 2010, 10:29
Size:2049 x 1537 px

About the Object

Name:Very Large Telescope
Type:Unspecified : Technology : Observatory : Telescope
Category:Survey Telescopes

Image Formats

Large JPEG
884.7 KB
Screensize JPEG
249.7 KB

Wallpapers

1024x768
288.0 KB
1280x1024
443.1 KB
1600x1200
610.6 KB
1920x1200
706.0 KB
2048x1536
937.3 KB

 

Also see our