Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...291..664d&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 291, no. 2, p. 664-667
Astronomy and Astrophysics
Astrophysics
4
Astrometry, Europa, Io, Occultation, Astronomical Models, Infrared Photometry, Light Curve
Scientific paper
Astrometric results from an analysis of 36 lightcurves of Io's occultations by Europa, observed during 1991 in the visible bands, are presented. They are issued from the adjustment of a theoretical astrometric-photometric model to observations using Hapke's law. These observations are of importance because they give high quality astrometric information useful to the determination of the location of Io's hotspots. In fact, accurate positioning of hotspots on Io is made possible from infrared observations only if the occultation timing is well-known.
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