Images of Titan on November 20, 25 and 26, 2002 Through Five Filters (VLT YEPUN + NACO)

Titan (apparent visual magnitude 8.05, apparent diameter 0.87 arcsec) as observed with the NAOS/CONICA instrument at VLT Yepun (Paranal Observatory, Chile) on November 20, 25 and 26, 2003, between 6.00 UT and 9.00 UT. The median seeing values were 1.1 arcsec and 1.5 arcsec respectively for the 20th and 25th. Deconvoluted ("sharpened") images of Titan are shown through 5 different narrow-band filters - they allow to probe in some detail structures at different altitudes and on the surface. Depending on the filter, the integration time varies from 10 to 100 seconds. While Titan shows its leading hemisphere (i.e. the one observed when Titan moves towards us) on Nov. 20, the trailing side (i.e the one we see when Titan moves away from us in its course around Saturn) - which displays less bright surface features - is observed on the last two dates.

Crédit:

ESO

À propos de l'image

Identification:eso0408a
Type:Observation
Date de publication:1 avril 2004
Communiqués de presse en rapport:eso0408
Taille:2875 x 1676 px

À propos de l'objet

Nom:Titan
Type:Solar System : Planet : Satellite
Catégorie:Solar System

Image Formats

Grand JPEG
433,3 Kio

Fonds d'écran

1024x768
111,2 Kio
1280x1024
150,1 Kio
1600x1200
204,4 Kio
1920x1200
241,0 Kio
2048x1536
291,1 Kio

Couleurs & filtres

DomaineLongueur d'ondeTélescope
Infrarouge
2170
Very Large Telescope
NACO
Infrarouge
Near-IR
2.12 μmVery Large Telescope
NACO
Infrarouge
Near-IR
1.28 μmVery Large Telescope
NACO
Infrarouge
Near-IR
1.24 μmVery Large Telescope
NACO
Infrarouge
Near-IR
1.08 μmVery Large Telescope
NACO