2015 KE172

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2015 KE172
Discovery
Perihelion
44.137 AU (6.6028 Tm)
133.12 AU (19.914 Tm)
Eccentricity0.6685
1536 yr (561,018 d)
0.1061°
0° 0m 2.16s / day
Inclination38.280°
227.55°
15.428°
Physical characteristics
Mean diameter
100 km (est. at 0.09)[4]
0.09 (generic est.)[4]
8.2024[2]

2015 KE172, internal designation o5m72, is a distant resonant

billion km).[2] Its existence was first released in February 2018, and the observations and orbit were announced on 27 April 2018.[5] It belongs to the most distant resonant objects known to exist.[3]

Description

Orbital diagram of 2015 KE172

2015 KE172 is one of two known

mean-motion resonance with Neptune.[3]

Based on a generic magnitude-to-diameter conversion, the object measures 100 kilometers in diameter,

albedo
of 0.09, which is a typical figure seen among the diverse populations of distant objects.

It orbits the Sun at a distance of 44.1–222 

semi-major axis of 133.1 AU). Its orbit has a high eccentricity of 0.67 and an inclination of 38° with respect to the ecliptic.[2] As of 2018, this minor planet has not been numbered.[1]

References

  1. ^ a b c d "2015 KE172". Minor Planet Center. Retrieved 28 April 2018.
  2. ^ a b c d e f "JPL Small-Body Database Browser: (2015 KE172)" (2017-08-31 last obs.). Jet Propulsion Laboratory. Retrieved 28 April 2018.
  3. ^
    S2CID 119406588
    .
  4. ^ a b c "Asteroid Size Estimator". CNEOS NASA/JPL. Retrieved 28 April 2018.
  5. IAU Minor Planet Center
    . 27 April 2018. Retrieved 28 April 2018. (K15KH2E)
  6. IAU Minor Planet Center
    . 20 February 2018. Retrieved 28 April 2018. (K07Th4C)
  7. ^ "2007 TC434". Minor Planet Center. Retrieved 28 April 2018.
  8. ^ Orbit Fit and Astrometric record for 07TC434

External links

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