(9881) Sampson Mars-crossing Asteroid

Discovered on 25 September 1994 by R. H. McNaught at Siding Spring.

Ralph Allen Sampson (1866–1939) was an Irish-British astronomer with main research areas in the color temperature of stars and the theory of motion of Jupiter's Galilean satellites. He was the 5th Astronomer Royal for Scotland.Naming citation (WGSBN Bull. 2, #1, 6), IAU / Minor Planet Center, via NASA/JPL

Where Sampson is today

MercuryVenusEarthEarthMarsMarsSampsonSampson

Seen from above the solar system on 2026-10-14: Sampson is 1.49 au from the Sun and 1.75 au from Earth. Computed from JPL's orbital elements.

Facts

Number9881
Provisional designation1994 SE
Orbit classMars-crossing Asteroid
Absolute magnitude (H)15.91
Orbital period3.58 years
Semi-major axis2.34 au
Perihelion – aphelion1.38 – 3.30 au
Eccentricity0.411
Inclination8.08°
Closest distance between its orbit and Earth's (MOID)0.403 au

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

Also named after someone called Ralph

Also discovered on 25 September 1994

More named asteroids discovered by R. H. McNaught