 List of Jupiter trojans (Trojan camp) (400001–500000)

The Jupiter trojans are a group of asteroids that share Jupiter's orbit around the Sun, residing in two groups at 60 degrees ahead of (the L4 point) and 60 degrees behind (the L5 point) the planet. They are named after characters from Greek and Roman mythology. The specific range of numbers you mentioned (400001–500000) refers to the cataloging of these asteroids based on their discovery numbers. This range includes many identified Jupiter trojans.