(4746) Doi Outer Main-belt Asteroid

Discovered on 9 October 1989 by Takahashi, A., Watanabe, K. at Kitami.

Where Doi is today

MercuryVenusEarthEarthMarsMarsDoiDoi

Seen from above the solar system on 2026-10-14: Doi is 3.67 au from the Sun and 4.64 au from Earth. Computed from JPL's orbital elements.

Facts

Number4746
Provisional designation1989 TP1
Orbit classOuter Main-belt Asteroid
Diameter21.9 km (#1,980 largest of 17,440 named asteroids with a measured size)
Albedo0.0890
Rotation period20.9 hours
Absolute magnitude (H)12.28
Orbital period5.75 years
Semi-major axis3.21 au
Perihelion – aphelion2.64 – 3.77 au
Eccentricity0.177
Inclination0.887°
Closest distance between its orbit and Earth's (MOID)1.65 au

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

Also discovered on 9 October 1989

More named asteroids discovered by Takahashi, A., Watanabe, K.