(5018) Tenmu Main-belt Asteroid

Discovered on 19 February 1977 by Kosai, H., Hurukawa, K. at Kiso.

Where Tenmu is today

MercuryVenusEarthEarthMarsMarsTenmuTenmu

Seen from above the solar system on 2026-10-14: Tenmu is 2.03 au from the Sun and 1.04 au from Earth. Computed from JPL's orbital elements.

Facts

Number5018
Provisional designation1977 DY8
Orbit classMain-belt Asteroid
Diameter3.77 km (#13,297 largest of 17,440 named asteroids with a measured size)
Albedo0.313
Absolute magnitude (H)14.32
Orbital period3.17 years
Semi-major axis2.16 au
Perihelion – aphelion2.03 – 2.29 au
Eccentricity0.0591
Inclination3.41°
Closest distance between its orbit and Earth's (MOID)1.03 au

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

Also discovered on 19 February 1977

More named asteroids discovered by Kosai, H., Hurukawa, K.