Predictions of mutual phenomena of the Galilean satellites in 1985–1986 |
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Authors: | Kaare Aksnes Fred Franklin |
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Institution: | 1. Norwegian Defence Research Establishment, Kjeller, USA;2. University of Tromsö, Tromsö, Norway |
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Abstract: | A thorough search covering more than 3 years shows that nearly 300 observable mutual eclipses and occultations of the Galilean satellites occur between May 1985 and April 1986, marking this apparition as a very favorable one. This paper tabulates quantities needed to obtain light curves of all events, excluding only those taking place either too close to Jupiter or with the planet too near the Sun. Since observations are relatively short and easy to incorporate into photometric programs, we urge an active campaign so as to provide the accurate astrometric data required to improve ephemerides (which are of immediate interest to the Galileo mission to Jupiter) and to look for tidal effects in the motion of Io. |
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