(9713) Oeax Jupiter Trojan

Discovered on 19 September 1973 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar.

Oeax was the son of Nauplius of Euboea and brother of Palamedes. He traveled with his father from Troy to Greece.Naming citation (WGSBN Bull. 2, #10, 4), IAU / Minor Planet Center, via NASA/JPL

Where Oeax is today

MercuryVenusEarthEarthMarsMarsJupiterJupiterOeaxOeax

Seen from above the solar system on 2026-10-14: Oeax is 5.10 au from the Sun and 6.08 au from Earth. Computed from JPL's orbital elements.

Facts

Number9713
Provisional designation1973 SP1
Orbit classJupiter Trojan
Diameter18.7 km (#2,400 largest of 17,440 named asteroids with a measured size)
Albedo0.168
Rotation period22.0 hours
Absolute magnitude (H)11.35
Orbital period11.7 years
Semi-major axis5.16 au
Perihelion – aphelion4.88 – 5.44 au
Eccentricity0.0543
Inclination4.16°
Closest distance between its orbit and Earth's (MOID)3.90 au

Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.

Also discovered on 19 September 1973

More named asteroids discovered by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T.