(5259) Epeigeus Jupiter Trojan

Discovered on 30 January 1989 by Shoemaker, C. S., Shoemaker, E. M. at Palomar.

Where Epeigeus is today

MercuryVenusEarthEarthMarsMarsJupiterJupiterEpeigeusEpeigeus

Seen from above the solar system on 2026-10-14: Epeigeus is 5.13 au from the Sun and 6.08 au from Earth. Computed from JPL's orbital elements.

Facts

Number5259
Provisional designation1989 BB1
Orbit classJupiter Trojan
Diameter44.7 km (#863 largest of 17,440 named asteroids with a measured size)
Albedo0.0730
Rotation period18.4 hours
Absolute magnitude (H)10.37
Orbital period11.9 years
Semi-major axis5.21 au
Perihelion – aphelion4.84 – 5.59 au
Eccentricity0.0723
Inclination15.9°
Closest distance between its orbit and Earth's (MOID)3.83 au

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

Also discovered on 30 January 1989

More named asteroids discovered by Shoemaker, C. S., Shoemaker, E. M.