2013 GP136 is a trans-Neptunian object from the scattered disc in the outermost reaches of the Solar System, approximately 212 kilometers in diameter. It was discovered on 8 February 2013, by the Outer Solar System Origins Survey at the Mauna Kea Observatories on the island of Hawaii, United States.[2]
| Discovery[1][2] | |
|---|---|
| Discovered by | OSSOS |
| Discovery site | Mauna Kea Obs. |
| Discovery date | 8 February 2013 |
| Designations | |
MPC designation | (496315) 2013 GP136 |
Alternative designations | o3e39[3] |
Minor planet category | TNO[1] · SDO[4] |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 3 | |
| Observation arc | 4.29 yr (1,566 days) |
| Aphelion | 268.46 AU |
| Perihelion | 41.073 AU |
Semi-major axis | 154.76 AU 149.8 AU[5] |
| Eccentricity | 0.7346 |
Orbital period (sidereal) | 1925 yr (703,239 days) |
Mean anomaly | 356.44° |
Mean motion | 0° 0m 1.8s / day |
| Inclination | 33.467° |
Longitude of ascending node | 210.71° |
Argument of perihelion | 42.316° |
| Physical characteristics | |
| Dimensions | 212 km[4] |
Absolute magnitude (H) | 6.6[1] |
2013 GP136 orbits the Sun at a distance of 41.1–268.5 AU once every 1925 years and 4 months (703,239 days). Its orbit has an eccentricity of 0.73 and an inclination of 33° with respect to the ecliptic.[1]
It was mentioned in a 2016 paper by Malhotra of the Lunar and Planetary Laboratory, at The University of Arizona, Tucson, AZ as a detached object with a perihelion greater than 40 AUs, a 6:1 orbital period ratio with 90377 Sedna, and in a possible 9:1 mean-motion resonance with a hypothetical large Planet Nine.[5]
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