(2816) Pien Main-belt Asteroid

Discovered on 22 September 1982 by E. Bowell at Anderson Mesa.

Where Pien is today

MercuryVenusEarthEarthMarsMarsPienPien

Seen from above the solar system on 2026-10-14: Pien is 2.71 au from the Sun and 3.35 au from Earth. Computed from JPL's orbital elements.

Facts

Number2816
Provisional designation1982 SO
Orbit classMain-belt Asteroid
Diameter28.3 km (#1,463 largest of 17,440 named asteroids with a measured size)
Albedo0.0420
Rotation period80.3 hours
Spectral typeB
Absolute magnitude (H)12.08
Orbital period4.50 years
Semi-major axis2.73 au
Perihelion – aphelion2.21 – 3.24 au
Eccentricity0.189
Inclination7.72°
Closest distance between its orbit and Earth's (MOID)1.22 au

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

Also discovered on 22 September 1982

More named asteroids discovered by E. Bowell