186 Celuta is a 50 km Main belt asteroid.

This was the last discovery credited to the Prosper brothers.

The asteroid is named after Céluta, a female character in two works of fiction by François-René de Chateaubriand, Atala (1801) and René (1802).

[3] Both Atala and Céluta are American Indian fictional characters.

[4] Photometric observations of this asteroid at the Organ Mesa Observatory in Las Cruces, New Mexico during 2010 gave a light curve with a period of 19.842 ± 0.001 hours and a brightness variation of 0.54 ± 0.02 in magnitude.