(15651) Tlepolemos Jupiter Trojan

Discovered on 22 October 1960 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar.

Tlepolemos was king of Rhodos, son of Heracles and was one of the first kings to join the army against Troy.Naming citation (20010309/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where Tlepolemos is today

MercuryVenusEarthEarthMarsMarsJupiterJupiterTlepolemosTlepolemos

Seen from above the solar system on 2026-10-14: Tlepolemos is 5.46 au from the Sun and 6.45 au from Earth. Computed from JPL's orbital elements.

Facts

Number15651
Provisional designation9612 P-L
Orbit classJupiter Trojan
Diameter24.3 km (#1,742 largest of 17,440 named asteroids with a measured size)
Albedo0.0990
Rotation period5.82 hours
Absolute magnitude (H)11.47
Orbital period12.3 years
Semi-major axis5.32 au
Perihelion – aphelion5.10 – 5.54 au
Eccentricity0.0418
Inclination2.96°
Closest distance between its orbit and Earth's (MOID)4.11 au

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

Also discovered on 22 October 1960

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