(2271) Kiso Main-belt Asteroid

Discovered on 22 October 1976 by Kosai, H., Hurukawa, K. at Kiso.

Named for the station of the Tokyo Observatory at which this minor planet was discovered.Naming citation (MPC 5525), IAU / Minor Planet Center, via NASA/JPL

Where Kiso is today

MercuryVenusEarthEarthMarsMarsKisoKiso

Seen from above the solar system on 2026-10-14: Kiso is 2.62 au from the Sun and 1.83 au from Earth. Computed from JPL's orbital elements.

Facts

Number2271
Provisional designation1976 UV5
Orbit classMain-belt Asteroid
Diameter31.2 km (#1,310 largest of 17,440 named asteroids with a measured size)
Albedo0.0720
Rotation period17.1 hours
Spectral typeT
Absolute magnitude (H)11.05
Orbital period4.58 years
Semi-major axis2.76 au
Perihelion – aphelion2.59 – 2.93 au
Eccentricity0.0605
Inclination3.39°
Closest distance between its orbit and Earth's (MOID)1.58 au

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

Also discovered on 22 October 1976

More named asteroids discovered by Kosai, H., Hurukawa, K.