393 Lampetia

Lampetia (minor planet designation: 393 Lampetia) is a fairly large main belt asteroid that was discovered by German astronomer Max Wolf on 4 November 1894 in Heidelberg. It has an unusually low rotation rate, with a period estimated at 38.7 hours and a brightness variation of 0.14 in magnitude.

In 2000, the asteroid was detected by radar from the Arecibo Observatory at a distance of 0.98 AU. The resulting data yielded an effective diameter of 125 ± 20 km.

It comes to opposition at apparent magnitude 10.5 on 6 July 2023 and then perihelion on 15 August 2023.