Prothoenor was also a hero from Boeotia in the fight against Troy, as were Klonios and Arkesilaos {see planets (22199) and (20961), respectively}. (M 43047) _ _.
Discovered on 24-9-1960 in Palomar by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T.