(119951) 2002 KX14

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(119951) 2002 KX14
Discovered by Michael E. Brown, Chad Trujillo
Discovery date 17 May 2002
MPC designation (119951) 2002 KX14
Minor planet category TNO
Orbital characteristics[1][2]
Epoch 31 December 2006 (JD 2454100.5)
Aphelion 40.654 AU (6081.698 Gm)
Perihelion 37.394 AU (5594.029 Gm)
39.024 AU (5837.864 Gm)
Eccentricity 0.042
243.78 a (89,041.246 d)
4.77 km/s
Inclination 0.401°
Physical characteristics
Dimensions <562+220
(2007) km[3]
Albedo >0.08+0.09
Temperature ≈45 K
20.4 (opposition)[4][5]

(119951) 2002 KX14, also written as 2002 KX14, is a trans-Neptunian object (TNO) residing within the Kuiper belt. It was discovered on 17 May 2002 by Michael E. Brown and Chad Trujillo.[citation needed]

It has a semi-major axis, orbital period and orbital eccentricity close to that of a plutino.[6] The orbital periods of plutinos cluster around 247.2 years (1.5 times Neptune's orbital period). However, (119951) 2002 KX14 is not a plutino, because is not in resonance with Neptune, and it may have formed near its present nearly circular orbit lying almost perfectly on the ecliptic. It may have remained dynamically cold and thus its orbit may not be a direct result of significant perturbations during Neptune's outward planetary migration. The Deep Ecliptic Survey (DES) currently shows it as a cubewano (classical) based on a 10-million-year integration of the orbit.[2]


It comes to opposition in late May at an apparent magnitude of 20.4.[4][5] This makes it about 360 times fainter than Pluto.[7]

The evolution of the semi-major axis of both Pluto (pink) and (119951) 2002 KX14 (blue).

See also[edit]


  1. ^ a b c "JPL Small-Body Database Browser: 119951 (2002 KX14)". (last obs). 2006-04-26. Retrieved 2008-07-16. 
  2. ^ a b c Marc W. Buie (2006-04-26). "Orbit Fit and Astrometric record for 119951". SwRI (Space Science Department). Retrieved 2008-07-16. 
  3. ^ a b Stansberry, John; et al. (2007). "Physical Properties of Kuiper Belt and Centaur Objects: Constraints from Spitzer Space Telescope". arXiv:astro-ph/0702538 [astro-ph].
  4. ^ a b "(119951) 2002 KX14". (epoch) Minor Planet Center. 2010-07-23. Retrieved 2010-10-24. 
  5. ^ a b "HORIZONS Web-Interface". JPL Solar System Dynamics. Retrieved 2008-07-20. 
  6. ^ John S. Lewis (2004). "Plutinos 2nd paragraph". Physics and Chemistry of the Solar System. Academic Press. p. 410. ISBN 978-0-12-446744-6. 
  7. ^ (5th root of 100)^(20.4-14=363)

External links[edit]