2010 GB174
Detached object
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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.
Orbits of 2010 GB174 (dark blue) and other scattered/detached objects, along with hypothetical Planet Nine on the right | |
| Discovery | |
|---|---|
| Discovery date | 12 April 2010 |
| Designations | |
Designation | 2010 GB174 |
| detached object | |
| Orbital characteristics[1] | |
| Epoch 21 November 2025 (JD 2461000.5) | |
| Observation arc | 5.83 years |
| Earliest precovery date | 26 June 2009 |
| Aphelion | |
| Perihelion | 48.4±0.07 AU |
| Eccentricity | 0.864±0.003 |
| 3.96°±0.1° | |
| 0° 0m 0.527s / day | |
| Inclination | 21.54° |
| 130.6° (Ω) | |
| ≈ 1951-Aug-20[4] | |
| 347.3°±0.08° (ω) | |
| Physical characteristics | |
| Dimensions | |
| Albedo | 0.08 (assumed)[5] |
| 25.2[7] | |
| 6.74[1] | |
Precovery images have been found back to 26 June 2009.[1]
It reached perihelion (closest approach to the Sun) in mid-1951[4] and had moved beyond 70 AU in September 2014.[7]
Numerical simulations based on models of Solar System formation suggest this object, along with Sedna, may be part of the inner edge of the Oort cloud.[10][11]
Comparison
