2001 QR₃₂₂

2001 QR₃₂₂ (also written 2001 QR322) was the first Neptune trojan discovered, in 2001 by the Deep Ecliptic Survey. It orbits ahead of Neptune at its L₄ Lagrangian point.

With an absolute magnitude of 7.8 to 8.2, it has a diameter in the range of 60 to 160 km.

Other Neptune trojans have been discovered since. A study by Scott S. Sheppard and Chad Trujillo from the Carnegie Institution suggests that Neptune could possibly have twenty times more trojans than Jupiter.