The Institut de mecanique celeste et de calcul des ephemerides provides and publishes ephemerides of solar system bodies. It serves as the official and public source of ephemerides devoted to regulate calendars2.

It performs theoretical research activities in the fields of celestial mechanics, planetology and mathematics. It initiates and coordinates observing campaigns of rare and specific celestial events.

1610-2010: galilleans satellites saga

2010 is the year of the 400th anniversary of the four large Jupiter's satellites discovered by Galileo. IMCCE has always been highly involved in the observation and theoretical study of the Galilean satellites motion. This event gives us the opportunity to return on the exploration of this first planetary system discovered.

Our newsletter will monthly describe this particular saga that involved so many astronomers and observation facilities till today.

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Galileo drawing of Jupiter and her moons

Caution : This Website was created with the Ministère de l'Education Nationale, the CNRS and the CNES support. Any use of the data published on this website requires the IMCCE agreement..