Saturn's moon Titan observed using the polarimetric mode of SPHERE

Titan's atmosphere has a thick layer of haze which is reflecting the visible light from the Sun. Therefore, unlike in the near-infrared, we cannot see down to the surface and Titan looks like a featureless sphere of haze (left). However, the light scattered from the haze is highly polarised, like the blue sky of the Earth. The SPHERE instrument is equipped with sensitive polarimeters, which can measure how strongly the light is polarised (right). There is strong polarisation at the limb of Titan due to scattering by haze particles. This polarimetric technique will be used by SPHERE for a sensitive search for reflected, and therefore polarised, light from exoplanets.

Kilde:

ESO/J.-L. Beuzit et al./SPHERE Consortium

Om billedet

Id:eso1417h
Type:Kollage
Udgivelsesdato:4. juni 2014 12:00
Relaterede pressemeddelelser:eso1417
Størrelse:859 x 421 px

Om objektet

Navn:Titan
Type:Solar System : Planet : Satellite
Kategori:Solar System

Billedformater

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203,5 KB
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Farver & filtre

BåndTeleskop
OptiskVery Large Telescope
SPHERE

 

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