(309239) 2007 RW 10

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Asteroid
(309239) 2007 RW 10
Properties of the orbit ( animation )
Orbit type Transneptunian object
Major semi-axis 30.165  AU
eccentricity 0.302
Perihelion - aphelion 21,055 AU - 39,275 AU
Inclination of the orbit plane 36.2 °
Sidereal period 166 years
Mean orbital velocity 5.29 km / s
Physical Properties
Absolute brightness 6.6 likes
history
Explorer Palomar
Date of discovery September 9, 2007
Another name 2007 RW 10
Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items.

(309239) 2007 RW 10 is a planetoid that was discovered on September 9, 2007 during the Palomar sky survey and belongs to the group of Trans-Neptunian objects . The asteroid orbit the sun in a moderately eccentric orbit in 166 years . The eccentricity of its orbit is 0.30, whereby it is inclined 36.18 ° to the ecliptic .

Recent studies have shown that it is currently in a quasi-orbit around the planet Neptune, that is a horseshoe-shaped orbit around Neptune, whose closest point to the Sun is on Uranus and whose point furthest from the Sun is about twice as far away.

These quasi-orbits can move the asteroid far away from the associated planet and it is usually very difficult to even recognize that such a quasi-orbit is a planet. Due to the great distance to the associated planet, these centaurs only remain in the current orbit for a few tens of thousands of years.

See also

Individual evidence

  1. C. de la Fuente Marcos, R. de la Fuente Marcos: (309239) 2007 RW10: a large temporary quasi-satellite of Neptune . In: Astronomy and Astrophysics Letters . 545, 2012, p. L9. arxiv : 1209.1577 . bibcode : 2012A & A ... 545L ... 9D . doi : 10.1051 / 0004-6361 / 201219931 .