(163153) Takuyaonishi Main-belt Asteroid

Discovered on 12 February 2002 by A. Nakamura at Kuma Kogen.

Takuya Onishi (b. 1975) was a Boeing 767 co-pilot for a Japanese airline. In 2009, he was selected by the Japanese Aerospace Exploration Agency as one of the Japanese astronaut candidates for the International Space Station.Naming citation (20110218/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where Takuyaonishi is today

MercuryVenusEarthEarthMarsMarsTakuyaonishiTakuyaonishi

Seen from above the solar system on 2026-10-14: Takuyaonishi is 2.46 au from the Sun and 1.70 au from Earth. Computed from JPL's orbital elements.

Facts

Number163153
Provisional designation2002 CO116
Orbit classMain-belt Asteroid
Diameter3.06 km (#15,059 largest of 17,440 named asteroids with a measured size)
Albedo0.0820
Absolute magnitude (H)16.14
Orbital period3.82 years
Semi-major axis2.44 au
Perihelion – aphelion2.02 – 2.87 au
Eccentricity0.173
Inclination11.2°
Closest distance between its orbit and Earth's (MOID)1.04 au

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

Also named after someone called Takuya

Also discovered on 12 February 2002

More named asteroids discovered by A. Nakamura