(11151) Oodaigahara Main-belt Asteroid

Discovered on 24 December 1997 by T. Kobayashi at Oizumi.

Oodaigahara is located on the southern end of the mountain-chain boundary between Nara and Mie prefectures. It affords beautiful views and is one of the 100 celebrated mountains in Japan. Oodaigahara is in the National Park of Yoshino-Kumano and was registered as a UNESCO world heritage site in 2004.Naming citation (20060413/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where Oodaigahara is today

MercuryVenusEarthEarthMarsMarsOodaigaharaOodaigahara

Seen from above the solar system on 2026-10-14: Oodaigahara is 2.35 au from the Sun and 1.46 au from Earth. Computed from JPL's orbital elements.

Facts

Number11151
Provisional designation1997 YZ2
Orbit classMain-belt Asteroid
Diameter8.80 km (#5,912 largest of 17,440 named asteroids with a measured size)
Albedo0.274
Rotation period15.3 hours
Absolute magnitude (H)12.46
Orbital period4.20 years
Semi-major axis2.60 au
Perihelion – aphelion2.30 – 2.91 au
Eccentricity0.118
Inclination12.1°
Closest distance between its orbit and Earth's (MOID)1.31 au

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

Also discovered on 24 December 1997

More named asteroids discovered by T. Kobayashi