(2078) Nanking Mars-crossing Asteroid

Discovered on 12 January 1975 by Purple Mountain Observatory at Nanking.

Where Nanking is today

MercuryVenusEarthEarthMarsMarsNankingNanking

Seen from above the solar system on 2026-10-14: Nanking is 2.86 au from the Sun and 3.68 au from Earth. Computed from JPL's orbital elements.

Facts

Number2078
Provisional designation1975 AD
Orbit classMars-crossing Asteroid
Diameter4.64 km (#11,352 largest of 17,440 named asteroids with a measured size)
Albedo0.404
Rotation period6.47 hours
Spectral typeSq
Absolute magnitude (H)13.01
Orbital period3.65 years
Semi-major axis2.37 au
Perihelion – aphelion1.48 – 3.26 au
Eccentricity0.375
Inclination20.2°
Closest distance between its orbit and Earth's (MOID)0.635 au

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

More named asteroids discovered by Purple Mountain Observatory