2010 GB174

2010 GB174
Orbits of 2010 GB174 (dark blue) and other scattered/detached objects, along with hypothetical Planet Nine on the right
Discovery
Discovery date12 April 2010
Designations
Designation
2010 GB174
detached object
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Observation arc2.64 years
Earliest precovery date26 June 2009
Aphelion
  • 649 AU (barycentric)[2]
  • 693±53 AU (Q)
Perihelion48.7±0.3 AU
  • 349 AU (barycentric)[3][2]
  • 371±29 AU (a)
Eccentricity0.869±0.01
  • 6500 yr (barycentric)[2]
  • 7150±827 yr
3.22°±0.4°
0° 0m 0.575s / day
Inclination21.54°
130.6° (Ω)
≈ 1951-Aug-20[4]
347.8°±0.4° (ω)
Physical characteristics
Dimensions
  • 223 km (based on assumed albedo)[5]
  • 130–300 km[1][6]
Albedo0.08 (assumed)[5]
25.2[7]
6.6[1]

2010 GB174 is a detached object, discovered on 12 April 2010 on data taken at the Canada France Hawaii Telescope as part of the Next Generation Virgo Cluster Survey.[8][9] It never gets closer than 48.5 AU from the Sun (about the outer edge of the Kuiper belt). Its large eccentricity strongly suggests that it was gravitationally scattered onto its current orbit. It is, like all detached objects, outside the current influence of Neptune, so how it got its current orbit is unknown. 2010 GB174 has the third highest Tisserand parameter relative to Jupiter of any Trans-Neptunian object, after Sedna and 2012 VP113. It has not been observed since 2015.[1] It comes to opposition in late March each year in the constellation of Virgo.

Precovery images have been found back to 26 June 2009.[1]

It reached perihelion (closest approach to the Sun) in mid-1951[4] and has moved beyond 70 AU in September 2014.[7] It is possibly a dwarf planet.[5]

  1. ^ a b c d e Cite error: The named reference jpldata was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference barycenter was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Malhotra_Volk_Wang was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Horizons1951 was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference Brown-dplist was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference h was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference AstDyS was invoked but never defined (see the help page).
  8. ^ Chen, Ying-Tung; Kavelaars, J. J.; Gwyn, Stephen; Ferrarese, Laura; Côté, Patrick; Jordán, Andrés; Suc, Vincent; Cuillandre, Jean-Charles; Ip, Wing-Huen (1 September 2013). "Discovery of a New Member of the Inner Oort Cloud from the Next Generation Virgo Cluster Survey". The Astrophysical Journal. 775 (1): L8. arXiv:1308.6041. Bibcode:2013ApJ...775L...8C. doi:10.1088/2041-8205/775/1/L8. ISSN 0004-637X.
  9. ^ "Home". NGVS. Retrieved 11 January 2022.