(496315) 2013 GP136

2013 GP₁₃₆ is a trans-Neptunian object from the scattered disc in the outermost reaches of the Solar System. It is 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]

(496315) 2013 GP₁₃₆

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]

Orbit and classification

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, 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]

See also

• List of Solar System objects most distant from the Sun