2004 KV18

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2004 KV18
Discovery
Discovery date 2004
Orbital characteristics[1]
Epoch JD 2456400.5 (18 April 2013)
Aphelion 35.70 AU
Perihelion 24.54 AU
30.12 AU
Eccentricity 0.184
165.35 yr (60,396 d)
62.30°
Inclination 13.61°
235.63°
294.24°
Physical characteristics
Dimensions ~56 km[2]
8.9[1]

2004 KV18 is the eighth Neptune trojan identified and the second in Neptune's L5 Lagrangian point (trailing Neptune).[3] It is suspected to be around 56 km in mean diameter.[2] As of 2016, it is 38 AU from Neptune. By 2097, it will be 55 AU from Neptune.[4]

2004 KV18 is a temporary Neptune trojan. The orbit of a Neptune trojan can only be stable when the eccentricity is less than 0.12.[5][6] Its lifetime as a trailing Neptune trojan is on the order of 100000 years into the future.[5]

References[edit]

  1. ^ a b "JPL Small-Body Database Browser: 2004 KV18". Retrieved 2013-03-29. 
  2. ^ a b The Tracking News
  3. ^ "List Of Neptune Trojans". Minor Planet Center. Archived from the original on 6 March 2012. Retrieved 2011-08-08. 
  4. ^ 2004 KV18 at JPL Horizons Change "Observer Location" to @Neptune
  5. ^ a b Guan, Pu; Zhou, Li-Yong; Li, Jian (2012). "Trailing (L5) Neptune Trojans: 2004 KV18 and 2008 LC18". Research in Astronomy and Astrophysics 12 (11): 1549–1562. arXiv:1205.2206. 
  6. ^ The dynamics of Neptune Trojan – I. The inclined orbits (figure 5)