Sorry! This page is not yet available in your preferred language, so we're displaying the original version instead.
Lasers in the night
ESO's Very Large Telescope (VLT) counteracts the blurriness of stars caused by the atmosphere through use of the 4 Laser Guide Star Facility (4LGSF). The 4LGSF sends four laser beams into the skies to produce four artificial stars by exciting sodium atoms located in the atmosphere at an altitude of 90 kilometres. These stars act as reference points to artificially remove the twinkling of stars.
The bright object at the top-right in the sky is the Moon.
Crédit:ESO/Daniele Gasparri (www.astroatacama.com)
À propos de la vidéo
Identification: | paranal-gasparri-tl-6 |
Date de publication: | 27 février 2019 11:02 |
Durée: | 09 s |
Frame rate: | 30 fps |
À propos de l'objet
Type: | Unspecified : Technology : Observatory |
Catégorie: | Paranal |