Back 38628 Huya Afrikaans 38628 هويا Arabic 38628 هويا (كويكب) ARZ 38628 Хуя Bulgarian (38628) Huya Catalan (38628) Huya German 38628 Χουγιά Greek 38628 Huya Esperanto (38628) Huya Spanish هویا ۳۸۶۲۸ Persian

38628 Huya

This article is about the minor planet. For other uses, see Huya (disambiguation).

38628 Huya
Huya and its satellite, imaged by the Hubble Space Telescope on 6 May 2012
Discovery[1]
Discovered byIgnacio R. Ferrín et al.
Discovery siteLlano del Hato Obs.
Discovery date10 March 2000
Designations
(38628) Huya
Pronunciation/huːˈjɑː/ hoo-YAH
Named after
Huya
2000 EB173
TNO · plutino[2]
Kozai res.[3] · distant[4]
Orbital characteristics (barycentric)[5][1][2]
Epoch 25 February 2023 (JD 2460000.5)
Uncertainty parameter 1
Observation arc28 yr
Earliest precovery date9 April 1996
Aphelion50.295 AU
Perihelion28.532 AU
39.413 AU
Eccentricity0.27608
247.28 yr (90,318 d)
11.695°
0° 0m 14.349s / day
Inclination15.474°
169.323°
14 December 2014[6]
67.882°
Known satellites1
Physical characteristics
414.7±0.9 km (primary; volume equiv.)[a]
Equatorial radius
218.05±0.11 km[7]
Polar radius
187.5±2.4 km (if oblate)[7]
Flattening0.14±0.01[7]
Volume3.73×107 km3[b]
Mass4.52+0.16
−0.15×1019 kg (system)[c][7]
(4.01±0.25)×1019 kg (primary)[d]
Mean density
1.073±0.066 g/cm3[7]
6.725±0.006 h[8]
0.079±0.004 (primary)[8]
IR (moderately red)[9]
B−V=0.96±0.01[10][11]
V−R=0.57±0.02[10]
V−I=1.2±0.02[10]
19.8[12]
5.04±0.03 (system)[13]
5.31±0.03 (primary)[8]

38628 Huya (/huːˈjɑː/ hoo-YAH; provisional designation 2000 EB173) is a binary trans-Neptunian object located in the Kuiper belt, a region of icy objects orbiting beyond Neptune in the outer Solar System. Huya is classified as a plutino, a dynamical class of trans-Neptunian objects with orbits in a 3:2 orbital resonance with Neptune. It was discovered by the Quasar Equatorial Survey Team and was identified by Venezuelan astronomer Ignacio Ferrín in March 2000. It is named after Juyá, the mythological rain god of the Wayuu people native to South America.

Huya's surface is moderately red in color due to the presence of complex organic compounds on its surface. Water ice has been suspected to be also present on its surface, although water ice has not been directly detected on Huya. Huya is considered as a mid-sized trans-Neptunian object, with an estimated diameter of about 400 km (250 mi). Huya has been considered to be a possible dwarf planet, though its relatively small size and dark surface may imply that it never collapsed into a solid body and was thus never in hydrostatic equilibrium.[14]

Huya has one known natural satellite. The satellite is relatively large compared to Huya and is expected to have slowed its rotation, although measurements of Huya's brightness variations have indicated that Huya's rotation may not be synchronous with the satellite's orbit.

  1. ^ a b Cite error: The named reference jpldata was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference Buie was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Schwamb2010 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference MPC-object was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference horizons-ssb was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Horizons2014 was invoked but never defined (see the help page).
  7. ^ a b c d e Cite error: The named reference Rommel2025 was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference Santos-Sanz-2022 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Barucci2005 was invoked but never defined (see the help page).
  10. ^ a b c Cite error: The named reference Belskaya2015 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference lcdb was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Grundy-tnbs was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference TNOsCool8 was invoked but never defined (see the help page).
  14. ^ Cite error: The named reference Grundy2019 was invoked but never defined (see the help page).


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