5370 Taranis, provisional designation , is an

asteroid An asteroid is a minor planet—an object larger than a meteoroid that is neither a planet nor an identified comet—that orbits within the Solar System#Inner Solar System, inner Solar System or is co-orbital with Jupiter (Trojan asteroids). As ...

and suspected dormant comet on an eccentric orbit, classified as

near-Earth object A near-Earth object (NEO) is any small Solar System body orbiting the Sun whose closest approach to the Sun ( perihelion) is less than 1.3 times the Earth–Sun distance (astronomical unit, AU). This definition applies to the object's orbit a ...

of the

Amor group Amor Group was Scotland's largest independent business technology company before being acquired by Lockheed Martin in September 2013. The business was formed after a £28 million management buyout of Glasgow based Real Time Engineering Ltd. an ...

, approximately 5 kilometers in diameter.

Description

''Taranis'' was discovered on 2 September 1986, by French astronomer Alain Maury at the

Palomar Observatory The Palomar Observatory is an astronomical research observatory in the Palomar Mountains of San Diego County, California, United States. It is owned and operated by the California Institute of Technology (Caltech). Research time at the observat ...

in California, United States. It is one of very few asteroids located in the 2:1

mean-motion resonance In celestial mechanics, orbital resonance occurs when orbiting bodies exert regular, periodic gravitational influence on each other, usually because their orbital periods are related by a ratio of small integers. Most commonly, this relation ...

with

Jupiter Jupiter is the fifth planet from the Sun and the List of Solar System objects by size, largest in the Solar System. It is a gas giant with a Jupiter mass, mass more than 2.5 times that of all the other planets in the Solar System combined a ...

. When at

aphelion An apsis (; ) is the farthest or nearest point in the orbit of a planetary body about its primary body. The line of apsides (also called apse line, or major axis of the orbit) is the line connecting the two extreme values. Apsides perta ...

of 5.4 AU, the object is roughly the same distance from the Sun as Jupiter is when Jupiter is at aphelion. The unstable resonance with Jupiter is expected to last roughly 7.3 million years. ''Taranis'' also is expected of being a dormant comet. On 10 September 2099 it will pass from Earth. This

minor planet According to the International Astronomical Union (IAU), a minor planet is an astronomical object in direct orbit around the Sun that is exclusively classified as neither a planet nor a comet. Before 2006, the IAU officially used the term ''minor ...

was named after the Gaulish god of thunder

Taranis Taranis (sometimes Taranus or Tanarus) is a Celtic thunder god attested in literary and epigraphic sources. The Roman poet Lucan's epic ''Pharsalia'' mentions Taranis, Esus, and Teutates as gods to whom the Gauls sacrificed humans. This rare ...

from

Celtic mythology Celtic mythology is the body of myths belonging to the Celtic peoples.Cunliffe, Barry, (1997) ''The Ancient Celts''. Oxford, Oxford University Press , pp. 183 (religion), 202, 204–8. Like other Iron Age Europeans, Celtic peoples followed ...

. The official naming citation was published by the

Minor Planet Center The Minor Planet Center (MPC) is the official body for observing and reporting on minor planets under the auspices of the International Astronomical Union (IAU). Founded in 1947, it operates at the Smithsonian Astrophysical Observatory. Funct ...

on 1 September 1993 ().

References

External links

(5370) Taranis
at AstDyS-2
Asteroid Lightcurve Database (LCDB)
query form

)
Dictionary of Minor Planet Names
Google books * * * {{DEFAULTSORT:Taranis 005370 Discoveries by Alain Maury Named minor planets 19860902