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(119951) 2002 KX14

From Wikipedia, the free encyclopedia

(119951) 2002 KX14
119951-2002kx14 hst.jpg
Hubble Space Telescope image of 2002 KX14 taken in 2006
Discovered byMichael E. Brown, Chad Trujillo
Discovery date17 May 2002
MPC designation(119951) 2002 KX14
Orbital characteristics[1][2]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 3
Observation arc10192 days (27.90 yr)
Earliest precovery date31 May 1984
Aphelion40.491 AU (6.0574 Tm)
Perihelion37.244 AU (5.5716 Tm)
38.867 AU (5.8144 Tm)
242.32 yr (88506.6 d)
4.77 km/s
0° 0m 14.643s / day
Earth MOID36.2388 AU (5.42125 Tm)
Jupiter MOID32.2786 AU (4.82881 Tm)
Physical characteristics
Dimensions455±27 km[3]
Temperature≈45 K
20.4 (opposition)[4][5]
4.862±0.038,[3] 4.6[1]

(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.[1]

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

See also


  1. ^ a b c d "JPL Small-Body Database Browser: 119951 (2002 KX14)". (last obs). 26 April 2006. Retrieved 7 April 2016.
  2. ^ a b c Marc W. Buie (26 April 2006). "Orbit Fit and Astrometric record for 119951". SwRI (Space Science Department). Retrieved 16 July 2008.
  3. ^ a b c Vilenius, E.; Kiss, C.; Mommert, M.; et al. (2012). ""TNOs are Cool": A survey of the trans-Neptunian region VI. Herschel/PACS observations and thermal modeling of 19 classical Kuiper belt objects". Astronomy & Astrophysics. 541: A94. arXiv:1204.0697. Bibcode:2012A&A...541A..94V. doi:10.1051/0004-6361/201118743.
  4. ^ a b "(119951) 2002 KX14". (epoch) Minor Planet Center. 23 July 2010. Retrieved 24 October 2010.[permanent dead link]
  5. ^ a b "HORIZONS Web-Interface". JPL Solar System Dynamics. Retrieved 20 July 2008.
  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

This page was last edited on 27 May 2019, at 20:24
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