(55638) 2002 VE95

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(55638) 2002 VE95
Discovery
Synodic rotation period
6.76 h (ambiguous)[6][9][10]
0.149[7]
20.64[13]
5.3[1][3]
5.70±0.06[7]

(55638) 2002 VE95 (

dwarf planet candidate. As of 2021, it has not yet been named
.

Orbit and classification

2002 VE95 belongs to the plutino population, named after its largest member, Pluto. Plutinos are resonant trans-Neptunian objects, that are locked in a stable 2:3 mean-motion resonance with Neptune, orbiting the Sun twice for every three orbits Neptune does.[4][5] They form a significantly large part of the inner Kuiper belt, as hundreds of these objects have already been discovered.

This

semi-major axis of 39.18 AU). Its orbit has an eccentricity of 0.29 and an inclination of 16° with respect to the ecliptic.[3] On 29 June 2001, it came to perihelion and has since been moving away from the Sun. Due to precovery images recovered from the Digitized Sky Survey, the body's observation arc begins already in October 1990, or 12 years prior to its official discovery observation by astronomers with the Near-Earth Asteroid Tracking at Palomar.[1]

Numbering and naming

2002 VE95 was

M.P.C. 47763).[14] As of 2021, it has not been named.[1] According to the established naming conventions for plutinos, it will be named after a mythological figure from the underworld.[15]

Physical characteristics

Rotation period

The

Diameter and albedo

In 2010, observations with the

asteroid occultations on 3 December 2015, gave a best-fit ellipse dimension of (250.0 km × 250.0 km) with an poor quality rating of 1.[8] These timed observations are taken when the asteroid passes in front of a distant star.[8] The Collaborative Asteroid Lightcurve Link assumes a more regular albedo for a distant object of 0.10 and hence estimates a larger diameter of 297 kilometers.[6]

Color and composition

In the visible light, 2002 VE95 has a featureless reflectance spectrum.

B–V and V−R passband filters, respectively.[6][12]

The

centaur.[18] Observations with the Very Large Telescope revealed that 2002 VE95 has a heterogeneous surface—the amount of different ices and non-ice components depends on the observed area. Among the probable surface materials are water ice (4–19%), methanol ice (10–12%), and various tholins, photochemically altered organic compounds, also found on Triton and Titan. The redder areas are generally associated with the presence of methanol ice. The surface of 2002 VE95 appears to be primordial in origin.[19]

References

  1. ^ a b c d e f "55638 (2002 VE95)". Minor Planet Center. Retrieved 26 July 2021.
  2. ^ "MPEC 2008-O05 : Distant Minor Planets". Minor Planet Center & Tamkin Foundation Computer Network. 17 July 2008. Retrieved 23 July 2008.
  3. ^ a b c d e "JPL Small-Body Database Browser: 55638 (2002 VE95)" (2018-01-18 last obs.). Jet Propulsion Laboratory. Retrieved 26 July 2021.
  4. ^ a b c Johnston, Wm. Robert (18 August 2020). "List of Known Trans-Neptunian Objects". Johnston's Archive. Retrieved 26 July 2021.
  5. ^ a b "Orbit Fit and Astrometric record for 55638". Southwest Research Institute. Retrieved 26 July 2021.The Deep Ecliptic Survey Object Classifications
  6. ^ a b c d e f g h i j "LCDB Data for (55638)". Asteroid Lightcurve Database (LCDB). Retrieved 26 July 2021.
  7. ^
    ISSN 0004-6361
    .
  8. ^ a b c d "Asteroid (55638) 2002 VE95 – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 26 July 2021.
  9. ^
    ISSN 0004-6361
    .
  10. ^ .
  11. ^ .
  12. ^ .
  13. ^ "Asteroid (55638) 2002 VE95 – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 26 July 2021.
  14. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 26 July 2021.
  15. ^ "Naming of Astronomical Objects – Minor planets". IAU – International Astronomical Union. Retrieved 27 July 2021.
  16. .
  17. ^ .
  18. .

External links