 Dactyl was initially designated 1993 (243) 1.It was named by the International Astronomical Union in 1994, for the mythological dactyls who inhabited Mount Ida on the island of Crete.Dactyl is an "egg-shaped" but "remarkably spherical" object measuring 1.6 by 1.4 by 1.2 kilometres (0.99 mi × 0.87 mi × 0.75 mi).