(4791) Iphidamas Jupiter Trojan
Discovered on 14 August 1988 by C. S. Shoemaker at Palomar.
Where Iphidamas is today
Seen from above the solar system on 2026-10-14: Iphidamas is 4.91 au from the Sun and 4.26 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4791 |
| Provisional designation | 1988 PB1 |
| Orbit class | Jupiter Trojan |
| Diameter | 49.5 km (#760 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0790 |
| Rotation period | 9.70 hours |
| Absolute magnitude (H) | 10.02 |
| Orbital period | 11.7 years |
| Semi-major axis | 5.15 au |
| Perihelion – aphelion | 4.91 – 5.39 au |
| Eccentricity | 0.0463 |
| Inclination | 26.0° |
| Closest distance between its orbit and Earth's (MOID) | 3.93 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.