(18838) Shannon Main-belt Asteroid

Discovered on 18 July 1999 by Sarounova, L., Kusnirak, P. at Ondrejov.

American scientist Claude Elwood Shannon (1916-2001) became the father of information science and a cofounder of cybernetics through his numerous fundamental contributions, including the epoch-making paper A Mathematical Theory of Communication (1948).Naming citation (20020128/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where Shannon is today

MercuryVenusEarthEarthMarsMarsShannonShannon

Seen from above the solar system on 2026-10-14: Shannon is 3.09 au from the Sun and 4.08 au from Earth. Computed from JPL's orbital elements.

Facts

Number18838
Provisional designation1999 OQ
Orbit classMain-belt Asteroid
Absolute magnitude (H)14.47
Orbital period4.85 years
Semi-major axis2.86 au
Perihelion – aphelion2.62 – 3.10 au
Eccentricity0.0836
Inclination1.29°
Closest distance between its orbit and Earth's (MOID)1.63 au

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

Also named after someone called Claude

Also discovered on 18 July 1999