In 2005, the discovery of the high-inclination trojan 2005 TN53 has indicated that the Neptune trojans populate thick clouds, which has constrained their possible origins (see below).
O descubrimento do troiano de grande inclinación 2005 TN53 en 2005 evidenciou que os troianos de Neptuno poboan nubes grosas, feito que restrinxiu as súas posibles orixes.