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Laser guide stars in action
This image shows three of the four Unit Telescopes that together make up ESO's Very Large Telescope. One of the Unit Telescope is seen here shooting laser guide stars up into the sky to produce four artificial stars. These artificial stars allow astronomers to constantly measure the turbulence in the atmosphere, and adjust the mirrors inside the telescope to counteract this turbulence. This technique is called adaptive optics.
Källa:ESO/P. Horálek
Om bilden
ID: | 2017_11_18_upr_IMG_3321-laser-ok-CC |
Typ: | Foto |
Publiceringsdatum: | 21 februari 2018 11:24 |
Storlek: | 5472 x 3648 px |
Om objektet
Namn: | Laser Guide Star, Very Large Telescope |
Typ: | Unspecified : Technology : Observatory : Telescope |
Kategori: | Paranal |
Bildformat
Stor jpeg
6,5 MB
Publication TIFF 4K
20,5 MB
JPEG för publikation
3,7 MB
Skärmstor jpeg
309,5 kB