(1641) Tana Main-belt Asteroid

Discovered on 25 July 1935 by C. Jackson at Johannesburg.

Named for a river in Kenya.Naming citation (MPC 5183), IAU / Minor Planet Center, via NASA/JPL

Where Tana is today

MercuryVenusEarthEarthMarsMarsTanaTana

Seen from above the solar system on 2026-10-14: Tana is 3.20 au from the Sun and 3.27 au from Earth. Computed from JPL's orbital elements.

Facts

Number1641
Provisional designation1935 OJ
Orbit classMain-belt Asteroid
Diameter25.7 km (#1,642 largest of 17,440 named asteroids with a measured size)
Albedo0.0739
Rotation period7.95 hours
Absolute magnitude (H)10.54
Orbital period5.25 years
Semi-major axis3.02 au
Perihelion – aphelion2.73 – 3.31 au
Eccentricity0.0974
Inclination9.32°
Closest distance between its orbit and Earth's (MOID)1.71 au

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

More named asteroids discovered by C. Jackson