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2010 GB174 - Wikipedia

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2010 GB₁₇₄
Discovery
Orbits of 2010 GB₁₇₄ (dark blue) and other scattered/detached objects, along with hypothetical Planet Nine on the right
Discovery date	12 April 2010
Designations
Designation	2010 GB₁₇₄
Minor planet category	detached object
Orbital characteristics^[1]
Epoch 13 January 2016 (JD 2457400.5)
Observation arc	2.64 years
Earliest precovery date	26 June 2009
Aphelion	649 AU (barycentric)^[2] 693±53 AU (Q)
Perihelion	48.7±0.3 AU
Semi-major axis	349 AU (barycentric)^[3]^[2] 371±29 AU (a)
Eccentricity	0.869±0.01
Orbital period (sidereal)	6500 yr (barycentric)^[2] 7150±827 yr
Mean anomaly	3.22°±0.4°
Mean motion	0° 0^m 0.575^s / day
Inclination	21.54°
Longitude of ascending node	130.6° (Ω)
Time of perihelion	≈ 1951-Aug-20^[4]
Argument of perihelion	347.8°±0.4° (ω)
Physical characteristics
Dimensions	223 km (based on assumed albedo)^[5] 130–300 km^[1]^[6]
Albedo	0.08 (assumed)^[5]
Apparent magnitude	25.2^[7]
Absolute magnitude (H)	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]

Comparison

References

^ ^a ^b ^c ^d ^e "JPL Small-Body Database Browser: (2010 GB174)". Archived from the original on 26 June 2013. Retrieved 24 January 2016.
^ ^a ^b ^c Horizons output. "Barycentric Osculating Orbital Elements for 2010 GB174". Retrieved 20 September 2021. (Ephemeris Type:Elements and Center:@0)
^ Malhotra, Renu; Volk, Kathryn; Wang, Xianyu (2016). "Corralling a distant planet with extreme resonant Kuiper belt objects". The Astrophysical Journal Letters. 824 (2): L22. arXiv:1603.02196. Bibcode:2016ApJ...824L..22M. doi:10.3847/2041-8205/824/2/L22. S2CID 118422279.
^ ^a ^b "Horizons Batch for 2010 GB174 on 1951-Aug-20" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Retrieved 20 September 2021. (JPL#6/Soln.date: 2021-Apr-15)
^ ^a ^b ^c Michael E. Brown. "How many dwarf planets are there in the outer solar system? (updates daily)". California Institute of Technology. Archived from the original on 18 October 2011. Retrieved 16 February 2014.
^ "ABSOLUTE MAGNITUDE (H)". NASA/JPL. Archived from the original on 2 March 2001. Retrieved 27 May 2013.
^ ^a ^b "AstDyS 2010 GB174 Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 28 March 2014.
^ 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.
^ "Home". NGVS. Retrieved 11 January 2022.

External links

2010 GB174 at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
2010 GB174 at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

v t e Trans-Neptunian objects
TNO classes	Cubewanos Scattered-disc objects Detached objects Resonant objects Neptune trojans Plutinos Twotinos TNO moons
Dwarf planets (moons)	Orcus Vanth Pluto Charon Styx Nix Kerberos Hydra Haumea Namaka Hiʻiaka Ring Quaoar Weywot Rings Makemake MK2 Gonggong Xiangliu Eris Dysnomia Sedna
Sednoids	90377 Sedna 2012 VP113 541132 Leleākūhonua

Small Solar System bodies

Minor planets

Designation Groups List Moon Meanings of names
Asteroid	Active Aten asteroid Asteroid belt Family Jupiter trojan Near-Earth Spectral types
Distant minor planet	Centaur Neptune trojan Damocloid Trans-Neptunian object Detached Kuiper belt Oort cloud Scattered disc

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