551 Ortrud
[arz] 551 Ortrud (كويكب)
[ca] (551) Ortrud
[ce] (551) Ортруд
[de] (551) Ortrud
[el] 551 Ορτρούδη
[eo] 551 Ortrud
[es] (551) Ortrud
[eu] 551 Ortrud
[fa] سیارک ۵۵۱
[fr] (551) Ortrud