(9656) Kurokawahiroki Main-belt Asteroid

Discovered on 23 February 1996 by T. Kobayashi at Oizumi.

Hiroki Kurokawa (b. 1943), Kyoto University professor emeritus, is the former director of the Kwasan and Hida observatories. His research area is solar physics by optical observation. He founded NPO Kwasan Astro Network for the popularization of astronomy.Naming citation (WGSBN Bull. 3, #3, 6), IAU / Minor Planet Center, via NASA/JPL

Where Kurokawahiroki is today

MercuryVenusEarthEarthMarsMarsKurokawahirokiKurokawahiroki

Seen from above the solar system on 2026-10-14: Kurokawahiroki is 2.75 au from the Sun and 2.86 au from Earth. Computed from JPL's orbital elements.

Facts

Number9656
Provisional designation1996 DK1
Orbit classMain-belt Asteroid
Diameter7.87 km (#6,707 largest of 17,440 named asteroids with a measured size)
Albedo0.0600
Absolute magnitude (H)14.62
Orbital period3.65 years
Semi-major axis2.37 au
Perihelion – aphelion1.97 – 2.78 au
Eccentricity0.171
Inclination5.14°
Closest distance between its orbit and Earth's (MOID)0.981 au

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

Also named after someone called Hiroki

Also discovered on 23 February 1996

More named asteroids discovered by T. Kobayashi