(5126) Achaemenides Jupiter Trojan

Discovered on 1 February 1989 by C. S. Shoemaker at Palomar.

Where Achaemenides is today

MercuryVenusEarthEarthMarsMarsJupiterJupiterAchaemenidesAchaemenides

Seen from above the solar system on 2026-10-14: Achaemenides is 5.22 au from the Sun and 6.09 au from Earth. Computed from JPL's orbital elements.

Facts

Number5126
Provisional designation1989 CH2
Orbit classJupiter Trojan
Diameter51.9 km (#709 largest of 17,440 named asteroids with a measured size)
Albedo0.0500
Rotation period53.0 hours
Absolute magnitude (H)10.6
Orbital period12.0 years
Semi-major axis5.25 au
Perihelion – aphelion5.11 – 5.38 au
Eccentricity0.0259
Inclination29.9°
Closest distance between its orbit and Earth's (MOID)4.13 au

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

Also discovered on 1 February 1989

More named asteroids discovered by C. S. Shoemaker