2014 SS349

2014 SS₃₄₉ is an extreme trans-Neptunian and scattered disc object from the outermost regions of the Solar System, approximately 134 kilometers in diameter.^[3][4]

2014 SS₃₄₉

Discovery[1][2]
Discovery site	Cerro Tololo Obs.
Discovery date	22 September 2014
Designations
MPC designation	2014 SS349
Minor planet category	TNO[3] · SDO[4] distant[1] · detached
Orbital characteristics[3]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 6
Observation arc	1.21 yr (443 days)
Aphelion	241.52 AU
Perihelion	45.431 AU
Semi-major axis	143.48 AU
Eccentricity	0.6834
Orbital period (sidereal)	1718.60 yr (627,720 days)
Mean anomaly	8.1082°
Mean motion	0° 0m 2.16s / day
Inclination	48.266°
Longitude of ascending node	144.20°
Argument of perihelion	147.77°
Physical characteristics
Dimensions	134 km (calculated)[4]
Geometric albedo	0.09 (assumed)[4]
Absolute magnitude (H)	7.6[3]

Description

2014 SS₃₄₉ was first observed on 22 September 2014, by astronomers at the Cerro Tololo Observatory near La Serena, Chile.^[1]

It orbits the Sun at a distance of 45.4–241.5 AU once every 1718 years and 7 months (627,720 days). Its orbit has an eccentricity of 0.68 and an inclination of 48° with respect to the ecliptic.^[3]

Based on an absolute magnitude of approximately 7.6 and an assumed albedo of 0.09, Johnston's Archive calculated a mean-diameter of 134 kilometers.^[4]

See also

• List of unnumbered trans-Neptunian objects § 2014 SS349
• Planets beyond Neptune