by collisions or perturbed away from the vicinity. The putative parent body is estimated to have been 300 to 600 km in diameter (Vesta-sized) and differentiated. Metis would be the relatively intact core remnant (though smaller than 16 Psyche), and Amalthea a fragment of the mantle, with 90% of the original body unaccounted for. Coincidentally, both Metis and Amalthea have namesakes among Jupiter's inner moons. Occultations In 1984 an occultation of a star produced seven chords that Kristensen used to derive an ellipsoidal profile of 210×170 km. On 6 August 1989, Metis occulted a magnitude 8.7 star producing five chords suggesting a diameter of 173.5 km. Observations of an occultation on 11 February 2006, produced only two chords indicating a minimum diameter 156 km. All three of these occultations fit the ellipsoid 222×182×130 km suggested by Baer. On 7 March 2014, Metis occulted the star HIP 78193 (magnitude 7.9) over parts of Europe and the Middle East. See also Former classification of planets Comet seeker Notes References External links shape model deduced from lightcurve "Notice of discovery of Metis", MNRAS 8 (1848) 146 Irish Astronomical History: Markree Castle Observatory and The Discovery of the Asteroid Metis JPL Ephemeris (displays Elong from Sun and V mag for 2011) Globe of 9 Metis Flora asteroids Metis Metis S-type asteroids (Tholen) 18480425