"First light" stellar spectra from Giraffe

"First Light" test observation with the GIRAFFE spectrograph of about 50 high-quality spectra (10 min exposure at spectral resolution 7,000) of stars in the Milky Way disk, in the early morning of July 3, 2002. The stars have magnitudes of 12 - 16 and are all of solar type. The photo shows part of the image recorded with a 2000 x 4000 pixel CCD detector at the focal plane of the spectrograph. Each stellar spectrum is seen as one vertical line - some of the absorption lines can be seen as dark horizontal features.

Crédit:

ESO

À propos de l'image

Identification:eso0219a
Type:Observation
Date de publication:8 juillet 2002
Communiqués de presse en rapport:eso0219
Taille:698 x 1371 px

À propos de l'objet

Nom:Milky Way, Spectrum
Type:Milky Way : Galaxy
Catégorie:Galaxies

Image Formats

Grand JPEG
641,5 Kio

Fonds d'écran

1024x768
462,1 Kio
1280x1024
673,2 Kio
1600x1200
858,0 Kio
1920x1200
922,9 Kio
2048x1536
1,2 Mio

Couleurs & filtres

DomaineLongueur d'ondeTélescope
Infrarouge
H
1.6 μmVery Large Telescope
FLAMES

Exposure time: 50s