NUMBER@1 Nessus -LRB- , from -RRB- is a centaur -LRB- a type of icy planetoid -RRB- that was discovered by PERSON@1 , working with MISC@1 , at PERSON@2 Peak on NUMBER@2 April , NUMBER@3 .

NUMBER@1 Nessus is a centaur -LRB- a type of icy planetoid -RRB- that was found by PERSON@1 , working with MISC@1 , at PERSON@2 Peak on NUMBER@2 April , NUMBER@3 .
