2014 SR₃₄₉

2014 SR₃₄₉
	The orbits of 2014 SR349 (yellow) and other detached objects, along with the hypothetical Planet Nine's orbit on the right.
Discovery
Discovered by	Scott Sheppard and Chad Trujillo
Discovery date	19 September 2014
Designations
MPC designation	2014 SR349
Minor planet category	TNO; E-SDO (detached object);
Orbital characteristics
	Epoch 16 February 2017 (JD 2457800.5)
	Uncertainty parameter 5
Observation arc	738 days (2.02 yr)
Aphelion	549 AU (barycentric)[1]; 535 AU;
Perihelion	47.57 AU
Semi-major axis	299 AU (barycentric)[1]; 292 AU;
Eccentricity	0.8369
Orbital period	5157 yr (barycentric)[1]; 4981 yr;
Mean anomaly	357.3°
Mean motion	0.00019622°/day
Inclination	17.98°
Longitude of ascending node	34.75°
Argument of perihelion	341.35°
Physical characteristics
Dimensions	~200 km
Absolute magnitude (H)	6.6

2014 SR₃₄₉ is a trans-Neptunian object and scattered disc object in the outermost part of the Solar System. It was first observed on 19 September 2014 by astronomers Scott Sheppard and Chad Trujillo at Cerro Tololo Observatory, Chile, and revealed on 29 August 2016.[2] It currently has a magnitude of 24.18.[3]

References

Horizons output. "Barycentric Osculating Orbital Elements for 2014 SR349". Retrieved 8 February 2017. (Ephemeris Type:Elements and Center:@0)
"Hunt for Planet 9 reveals extremely distant solar system objects". Astronomy Now. 29 August 2016. Retrieved 16 October 2016.
"Asteroid 2014 SR349". Theskylive. Retrieved 16 October 2016.

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