Photometry with a periodic grid. II. Results for J2 Europa and S6 Titan

Details Photometry with a periodic grid. II. Results for J2 Europa and S6 Titan Photometry with a periodic grid. II. Results for J2 Europa and S6 Titan

May 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003a%26a...403..749h&link_type=abstract

Astronomy and Astrophysics, v.403, p.749-756 (2003)

Astronomy and Astrophysics

Astrophysics

1

Planets And Satellites: General, Planets And Satellites: Individual: J2 Europa, S6 Titan

Scientific paper

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 k ~ 0.90+/-0.02, and for J2 Europa, k ~ 0.58+/-0.01. Brightness variations with orbital phase are also given for Europa.
Based on data from the Hipparcos astrometry satellite.

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