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93 Minerva
93 Minerva ( ) is a large trinary main-belt asteroid. It is a C-type asteroid, meaning that it has a dark surface and possibly a primitive carbonaceous composition. It was discovered by J. C. Watson on August 24, 1867, and named after Minerva, the Roman equivalent of Athena, goddess of wisdom. An occultation of a star by Minerva was observed in France, Spain and the United States on November 22, 1982. An occultation diameter of ~170 km was measured from the observations. Since then two more occultations have been observed, which give an estimated mean diameter of ~150 km for diameter.〔(The occultation of AG+29°398 by 93 Minerva ). R. L. Millis, L. H. Wasserman, E. Bowell, O. G. Franz, R. NyeW. OsbornA. Klemola〕〔(Observed minor planet occultation events, version of 2005 July 26 )〕
==Satellites==
On August 16, 2009, at 13:36 UT, the Keck Observatory's adaptive optics system revealed that the asteroid 93 Minerva possesses 2 small moons. They are 4 and 3 km in diameter and the projected separations from Minerva correspond to 630 km (8.8 x Rprimary) and 380 km (5.2 x Rprimary) respectively.〔 They have been named Aegis and Gorgoneion.〔M.P.C. 86284 〕
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