(3933) Portugal Outer Main-belt Asteroid

Discovered on 12 March 1986 by R. M. West at La Silla.

Where Portugal is today

MercuryVenusEarthEarthMarsMarsPortugalPortugal

Seen from above the solar system on 2026-10-14: Portugal is 3.50 au from the Sun and 4.25 au from Earth. Computed from JPL's orbital elements.

Facts

Number3933
Provisional designation1986 EN4
Orbit classOuter Main-belt Asteroid
Diameter14.9 km (#3,156 largest of 17,440 named asteroids with a measured size)
Albedo0.0870
Rotation period8.56 hours
Absolute magnitude (H)12.57
Orbital period5.88 years
Semi-major axis3.26 au
Perihelion – aphelion2.94 – 3.57 au
Eccentricity0.0973
Inclination1.68°
Closest distance between its orbit and Earth's (MOID)1.93 au

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

More named asteroids discovered by R. M. West