(3720) Hokkaido Main-belt Asteroid

Discovered on 28 October 1987 by Ueda, S., Kaneda, H. at Kushiro.

Where Hokkaido is today

MercuryVenusEarthEarthMarsMarsHokkaidoHokkaido

Seen from above the solar system on 2026-10-14: Hokkaido is 2.38 au from the Sun and 1.63 au from Earth. Computed from JPL's orbital elements.

Facts

Number3720
Provisional designation1987 UR1
Orbit classMain-belt Asteroid
Diameter4.25 km (#12,160 largest of 17,440 named asteroids with a measured size)
Albedo0.563
Rotation period4.79 hours
Absolute magnitude (H)13.5
Orbital period3.53 years
Semi-major axis2.32 au
Perihelion – aphelion2.02 – 2.61 au
Eccentricity0.127
Inclination6.79°
Closest distance between its orbit and Earth's (MOID)1.02 au

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

Also discovered on 28 October 1987

More named asteroids discovered by Ueda, S., Kaneda, H.