(5193) Tanakawataru Main-belt Asteroid

Discovered on 7 March 1992 by Ueda, S., Kaneda, H. at Kushiro.

Wataru Tanaka (b. 1939) was a professor at the National Astronomical Observatory of Japan who specialized in spectroscopic studies of planets and late-type stars.Naming citation (20070601/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where Tanakawataru is today

MercuryVenusEarthEarthMarsMarsTanakawataruTanakawataru

Seen from above the solar system on 2026-10-14: Tanakawataru is 3.26 au from the Sun and 4.23 au from Earth. Computed from JPL's orbital elements.

Facts

Number5193
Provisional designation1992 ET
Orbit classMain-belt Asteroid
Diameter21.6 km (#2,007 largest of 17,440 named asteroids with a measured size)
Albedo0.0720
Rotation period5.34 hours
Absolute magnitude (H)12.07
Orbital period5.67 years
Semi-major axis3.18 au
Perihelion – aphelion2.68 – 3.68 au
Eccentricity0.156
Inclination2.71°
Closest distance between its orbit and Earth's (MOID)1.70 au

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

Also discovered on 7 March 1992

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