Volume 403, Number 2, May IV 2003
|Page(s)||749 - 756|
|Section||Planets and planetary systems|
|Published online||06 May 2003|
Photometry with a periodic grid*
II. Results for J2 Europa and S6 Titan
IMCCE, UMR CNRS 8028, Paris Observatory, 77 Av. Denfert Rochereau 75014 Paris, France
Corresponding author: email@example.com
Accepted: 19 February 2003
The Hipparcos satellite successfully gathered astrometric and photometric information for a few solar system objects including natural satellites. In contrast to the case for asteroids, the Hipparcos main-mission does not provide the photometry – in the conventional sense – of planetary satellites. Nevertheless, valuable photometric results can be obtained, such as a modelling of the centre-to-limb darkening of the bodies. We present in this paper results obtained for the photometry with a periodic grid of the satellites J2 Europa and S6 Titan from the Hipparcos main mission and within the FAST data-reduction Consortium. The Minnaert parameter of S6 Titan is found to be , and for J2 Europa, . Brightness variations with orbital phase are also given for Europa.
Key words: planets and satellites: general / planets and satellites: individual: J2 Europa, S6 Titan
© ESO, 2003
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