Original: Many asteroids were also discovered at the observatory, including the Trojan asteroids 2223 Sarpedon, 2260 Neoptolemus, 2363 Cebriones, 2456 Palamedes, as well as the eponymous 3494 Purple Mountain.
Simplified: Many asteroids were found at the observatory. Asteroids found include the Trojan asteroids 2223 Sarpedon, 2260 Neoptolemus, 2363 Cebriones, 2456 Palamedes, and 3494 Purple Mountain.