(5416) Estremadoyro Main-belt Asteroid

Discovered on 7 November 1978 by Helin, E. F., Bus, S. J. at Palomar.

Peruvian astronomer Víctor Antolí Estremadoyro Robles (1913-2003), professor of astronomy and a structural engineer, founded the Peruvian Association of Astronomy (1946) and the Iberoamerican League of Astronomy in 1958. The latter association unites institutions in 26 different countries.Naming citation (20050919/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where Estremadoyro is today

MercuryVenusEarthEarthMarsMarsEstremadoyroEstremadoyro

Seen from above the solar system on 2026-10-14: Estremadoyro is 3.42 au from the Sun and 4.24 au from Earth. Computed from JPL's orbital elements.

Facts

Number5416
Provisional designation1978 VE5
Orbit classMain-belt Asteroid
Diameter19.0 km (#2,350 largest of 17,440 named asteroids with a measured size)
Albedo0.0360
Rotation period20.8 hours
Spectral typeC
Absolute magnitude (H)12.97
Orbital period4.65 years
Semi-major axis2.78 au
Perihelion – aphelion2.13 – 3.44 au
Eccentricity0.236
Inclination8.38°
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 named after someone called Victor

Also discovered on 7 November 1978

More named asteroids discovered by Helin, E. F., Bus, S. J.