(1125) China Main-belt Asteroid

Discovered on 30 October 1957 by Purple Mountain Observatory at Nanking.

Where China is today

MercuryVenusEarthEarthMarsMarsChinaChina

Seen from above the solar system on 2026-10-14: China is 3.26 au from the Sun and 4.21 au from Earth. Computed from JPL's orbital elements.

Facts

Number1125
Provisional designation1957 UN1
Orbit classMain-belt Asteroid
Diameter26.1 km (#1,609 largest of 17,440 named asteroids with a measured size)
Albedo0.0780
Rotation period5.37 hours
Absolute magnitude (H)11.67
Orbital period5.53 years
Semi-major axis3.13 au
Perihelion – aphelion2.45 – 3.81 au
Eccentricity0.217
Inclination3.04°
Closest distance between its orbit and Earth's (MOID)1.46 au

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

More named asteroids discovered by Purple Mountain Observatory