(7871) Tunder Main-belt Asteroid

Discovered on 22 September 1990 by E. W. Elst at La Silla.

Where Tunder is today

MercuryVenusEarthEarthMarsMarsTunderTunder

Seen from above the solar system on 2026-10-14: Tunder is 2.15 au from the Sun and 1.18 au from Earth. Computed from JPL's orbital elements.

Facts

Number7871
Provisional designation1990 SW4
Orbit classMain-belt Asteroid
Diameter4.60 km (#11,435 largest of 17,440 named asteroids with a measured size)
Albedo0.230
Absolute magnitude (H)14.17
Orbital period3.58 years
Semi-major axis2.34 au
Perihelion – aphelion2.15 – 2.54 au
Eccentricity0.0840
Inclination4.46°
Closest distance between its orbit and Earth's (MOID)1.14 au

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

Also discovered on 22 September 1990

More named asteroids discovered by E. W. Elst