13 Egeria is a large main-belt G-type asteroid.
It was discovered by A. de Gasparis on November 2, 1850.
Egeria occulted a star on January 8, 1992. Its disc was determined to be quite circular (217×196 km). On January 22, 2008, it occulted another star, and this occultation was timed by several observers in New Mexico and Arizona, coordinated by the IOTA Asteroid Occultation Program. The result showed that Egeria presented an approximately circular profile to Earth of 214.8x192 km, well in agreement with the 1992 occultation. It has also been studied by radar.
Read more about 13 Egeria: High Water Content, Name