(3731) Hancock Outer Main-belt Asteroid

Discovered on 20 February 1984 by Perth Observatory at Bickley.

Where Hancock is today

MercuryVenusEarthEarthMarsMarsHancockHancock

Seen from above the solar system on 2026-10-14: Hancock is 3.28 au from the Sun and 3.82 au from Earth. Computed from JPL's orbital elements.

Facts

Number3731
Provisional designation1984 DH1
Orbit classOuter Main-belt Asteroid
Diameter53.1 km (#686 largest of 17,440 named asteroids with a measured size)
Albedo0.0190
Rotation period6.71 hours
Absolute magnitude (H)10.78
Orbital period5.81 years
Semi-major axis3.23 au
Perihelion – aphelion2.87 – 3.59 au
Eccentricity0.112
Inclination21.6°
Closest distance between its orbit and Earth's (MOID)1.97 au

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

More named asteroids discovered by Perth Observatory