(471325) 2011 KT19

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Asteroid
(471325) 2011 KT 19
Properties of the orbit ( animation )
Orbit type Transneptunian object
Major semi-axis 35.6  AU
eccentricity 0.332
Perihelion - aphelion 23.781 AU - 47.419 AU
Inclination of the orbit plane 110.2 °
Sidereal period 212 years
Mean orbital velocity 4.86 km / s
Physical Properties
Absolute brightness 7.2 likes
history
Explorer Mount Lemmon Survey
Date of discovery May 31, 2011
Another name 2011 CT 19
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.

(471325) 2011 KT 19 is a planetoid that was discovered on May 31, 2011 as part of the Mount Lemmon Survey and belongs to the group of Trans-Neptunian objects . The asteroid has orbited the sun in a moderately eccentric orbit for over 212 years . The eccentricity of its orbit is 0.33, with it being inclined 110.15 ° to the ecliptic , so that it has a retrograde orbit.

It bears the unofficial name "Niku" and is the absolutely brightest known retrograde planetoid in our solar system.

2011 KT19 orbit views.png
The orbit of 2011 KT 19 in relation to the planets of the solar system and the dwarf planet Pluto

Niku and Drac

The orbits of the two TNOs Niku (purple) and Drac (yellow) in their retrograde orbits as well as the orbits of the other planets: Pluto is shown in red.

See also

Individual evidence

  1. Chen, Ying-Tung; Lin, Hsing Wen; Holman, Matthew J; Payne, Matthew J; et al .: Discovery of A New Retrograde Trans-Neptunian Object: Hint of A Common Orbital Plane for Low Semi-Major Axis, High Inclination TNOs and Centaurs. In: The Astrophysical Journal . 827: L24, 2016, arxiv : 1608.01808 [astro-ph] .
  2. Database of the Minor Planet Center, query from November 9, 2018, i> = 90, 1 <= H <= 9