(2260) Neoptolemus Jupiter Trojan
Discovered on 26 November 1975 by Purple Mountain Observatory at Nanking.
The son of Achilles and Deidameia, Neoptolemus was brought to Troy by Odysseus in the last year of the Trojan War. He has one of the warriors in the wooden horse and was responsible for the death of Priam.Naming citation (MPC 6208), IAU / Minor Planet Center, via NASA/JPL
Where Neoptolemus is today
Seen from above the solar system on 2026-10-14: Neoptolemus is 5.38 au from the Sun and 6.34 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2260 |
| Provisional designation | 1975 WM1 |
| Orbit class | Jupiter Trojan |
| Diameter | 76.4 km (#404 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0570 |
| Rotation period | 8.18 hours |
| Spectral type | DTU: |
| Absolute magnitude (H) | 9.4 |
| Orbital period | 11.9 years |
| Semi-major axis | 5.20 au |
| Perihelion – aphelion | 4.97 – 5.43 au |
| Eccentricity | 0.0440 |
| Inclination | 17.8° |
| Closest distance between its orbit and Earth's (MOID) | 4.00 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 26 November 1975
More named asteroids discovered by Purple Mountain Observatory
- (1125) China
- (1802) Zhang Heng
- (1888) Zu Chong-Zhi
- (1972) Yi Xing
- (2012) Guo Shou-Jing
- (2027) Shen Guo
- (2045) Peking
- (2077) Kiangsu
- (2078) Nanking
- (2085) Henan
- (2162) Anhui
- (2169) Taiwan
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