2008 LC18 is a Neptune trojan discovered on June 7, 2008, by Scott S. Sheppard and Chad Trujillo using the Subaru telescope. It was the seventh such object to be discovered, as well as the first to be found in the region of the trailing L5 Lagrangian point about 60 degrees behind Neptune. Like all Neptune trojans, 2008 LC18 has the same orbital period as Neptune; i.e. it and Neptune are in a 1:1 orbital resonance.2008 LC18 has an inclination of 27.5 degrees.