(19913) Aigyptios Jupiter Trojan
Discovered on 19 September 1973 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar.
Aigyptios was the father of Antiphos, who was a hero in Troy and companion of Odysseus.Naming citation (20010309/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Aigyptios is today
Seen from above the solar system on 2026-10-14: Aigyptios is 4.97 au from the Sun and 5.95 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 19913 |
| Provisional designation | 1973 SU1 |
| Orbit class | Jupiter Trojan |
| Diameter | 25.0 km (#1,691 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.103 |
| Rotation period | 40.4 hours |
| Absolute magnitude (H) | 11.3 |
| Orbital period | 11.5 years |
| Semi-major axis | 5.10 au |
| Perihelion – aphelion | 4.81 – 5.40 au |
| Eccentricity | 0.0582 |
| Inclination | 7.13° |
| Closest distance between its orbit and Earth's (MOID) | 3.82 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 19 September 1973
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- (3290) Azabu
- (3548) Eurybates
- (4007) Euryalos
- (4068) Menestheus
- (4138) Kalchas
- (4230) van den Bergh
- (4387) Tanaka
- (4757) Liselotte
- (5041) Theotes
- (5928) Pindarus
- (7152) Euneus