Arching over ALMA

The Milky Way displays its stunning shape and colours as it arches over the Chilean desert. It creates the perfect frame for the antennas of the Atacama Large Millimeter/submillimeter Array (ALMA). Two of the Milky Way’s satellite galaxies can also be seen, the Large and Small Magellanic Clouds appearing in the crystal-clear sky as smudges beneath the arc of their larger neighbour. The artificial green glow which illuminates the ALMA antennas provides a striking contrast to nature’s stunning visual display above.

ALMA is situated more than 5000 metres above sea level in the Chilean Desert. Here the dry air and thin atmosphere allow a spectacular view into the Universe and make it the perfect place for a sensitive telescope like ALMA. Rather than being one single telescope, ALMA is composed of 66 separate, movable antennas spread over the Chajnantor plateau. By using different configurations of the antennae, the resolution with which ALMA observes celestial objects can be fine-tuned.

Crédit:

ESO/B. Tafreshi (twanight.org)

À propos de l'image

Identification:potw2036a
Type:Photographique
Date de publication:7 septembre 2020 06:00
Taille:15216 x 5168 px

À propos de l'objet

Nom:Atacama Large Millimeter/submillimeter Array
Type:Unspecified : Technology : Observatory : Telescope
Catégorie:ALMA

Image Formats

Grand JPEG
22,8 Mio
JPEG taille écran
147,3 Kio

Zoomable


Fonds d'écran

1024x768
367,9 Kio
1280x1024
617,8 Kio
1600x1200
887,2 Kio
1920x1200
1,0 Mio
2048x1536
1,2 Mio

 

Voir aussi notre