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(119979) 2002 WC19

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, also written as (119979) 2002 WC19, is a twotino, i.e. it is in a 1:2 orbital resonance with Neptune. [1]

14 relations: Astronomical unit, Day, Degree (angle), Julian day, Julian year (astronomy), Libration, List of possible dwarf planets, Minor-planet moon, Neptune, Observation arc, Orbital resonance, Palomar Observatory, Resonant trans-Neptunian object, Uncertainty parameter.

The astronomical unit (symbol au, AU or ua) is a unit of length, roughly the distance from the Earth to the Sun.

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A day is a unit of time.

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A degree (in full, a degree of arc, arc degree, or arcdegree), usually denoted by ° (the degree symbol), is a measurement of plane angle, representing of a full rotation.

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Julian day is the continuous count of days since the beginning of the Julian Period used primarily by astronomers.

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In astronomy, a Julian year (symbol: a) is a unit of measurement of time defined as exactly 365.25 days of SI seconds each.

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In astronomy, libration is a perceived oscillating motion of orbiting bodies relative to each other, notably including the motion of the Moon relative to Earth, or of trojan asteroids relative to planets.

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It is estimated that there may be 200 dwarf planets in the Kuiper belt of the outer Solar System and up to 10,000 in the region beyond.

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A minor-planet moon is an astronomical object that orbits a minor planet as its natural satellite.

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Neptune is the eighth and farthest planet from the Sun in the Solar System.

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Observation arc is a term used in observational astronomy, most particularly in discovery and tracking of asteroids and comets.

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In celestial mechanics, an orbital resonance occurs when two orbiting bodies exert a regular, periodic gravitational influence on each other, usually due to their orbital periods being related by a ratio of two small integers.

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Palomar Observatory is an astronomical observatory located in San Diego County, California, United States, southeast of Los Angeles, California, in the Palomar Mountain Range.

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In astronomy, a resonant trans-Neptunian object is a trans-Neptunian object (TNO) in mean-motion orbital resonance with Neptune.

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The uncertainty parameter (U) is an integer between 0 and 9 that quantifies the uncertainty in a perturbed orbital solution for a minor planet in a concise fashion, the Minor Planet Center (MPC) has introduced the U parameter.

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[1] https://en.wikipedia.org/wiki/(119979)_2002_WC19

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