(5017) Tenchi Main-belt Asteroid

Discovered on 18 February 1977 by Kosai, H., Hurukawa, K. at Kiso.

Where Tenchi is today

MercuryVenusEarthEarthMarsMarsTenchiTenchi

Seen from above the solar system on 2026-10-14: Tenchi is 3.06 au from the Sun and 3.19 au from Earth. Computed from JPL's orbital elements.

Facts

Number5017
Provisional designation1977 DS2
Orbit classMain-belt Asteroid
Diameter22.5 km (#1,910 largest of 17,440 named asteroids with a measured size)
Albedo0.0490
Rotation period6.30 hours
Absolute magnitude (H)12.47
Orbital period5.59 years
Semi-major axis3.15 au
Perihelion – aphelion2.90 – 3.40 au
Eccentricity0.0791
Inclination16.1°
Closest distance between its orbit and Earth's (MOID)1.95 au

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

Also discovered on 18 February 1977

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