C/2013 US10 (Catalina)

C/2013 US₁₀ (Catalina)
	C/2013 US10 as seen on 9 Dec 2015. To the upper left is the ion gas tail and to the lower right is the dust tail.
Discovery
Discovered by	Catalina Sky Survey (703)
Discovery date	31 October 2013
Orbital characteristics
Epoch	4 December 2015
Observation arc	4.26 years
Number of; observations	4396
Orbit type	Oort cloud
Aphelion	~38000 AU (inbound)
Perihelion	0.8229 AU (q)
Eccentricity	1.0003; 1.000+ (heliocentric epoch 2475–2500)
Orbital period	several million years inbound (barycentric solution for epoch 1950); Ejection trajectory outbound; (barycentric solution for epoch 2050)
Inclination	148.87°
Last perihelion	15 November 2015
Jupiter MOID	1.13 AU

C/2013 US₁₀ (Catalina) is an Oort cloud comet discovered on 31 October 2013 by the Catalina Sky Survey at an apparent magnitude of 19 using a 0.68-meter (27 in) Schmidt–Cassegrain telescope.^[1] From September 2015 to February 2016 the comet was around apparent magnitude 6.^[6] The comet took around a million years to complete half an orbit from its furthest distance in the Oort cloud and should be ejected from the Solar System over many millions of years.

^ ^a ^b Cite error: The named reference MPEC2013-V05 was invoked but never defined (see the help page).
^ Cite error: The named reference MPEC2013-V31 was invoked but never defined (see the help page).
^ ^a ^b ^c ^d ^e Cite error: The named reference MPEC2014-R69 was invoked but never defined (see the help page).
^ ^a ^b ^c Cite error: The named reference barycenter was invoked but never defined (see the help page).
^ Cite error: The named reference heliocentric was invoked but never defined (see the help page).
^ Cite error: The named reference Yoshida was invoked but never defined (see the help page).

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[MPEC2013-V31-2] Cite error: The named reference MPEC2013-V31 was invoked but never defined (see the help page).

[MPEC2014-R69-3] Cite error: The named reference MPEC2014-R69 was invoked but never defined (see the help page).

[barycenter-4] Cite error: The named reference barycenter was invoked but never defined (see the help page).

[heliocentric-5] Cite error: The named reference heliocentric was invoked but never defined (see the help page).

[Yoshida-6] Cite error: The named reference Yoshida was invoked but never defined (see the help page).

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Discovery
C/2013 US₁₀ as seen on 9 Dec 2015. To the upper left is the ion gas tail and to the lower right is the dust tail.
Discovered by	Catalina Sky Survey (703)^[1]^[2]
Discovery date	31 October 2013
Orbital characteristics
Epoch	4 December 2015^[3]
Observation arc	4.26 years
Number of observations	4396
Orbit type	Oort cloud
Aphelion	~38000 AU (inbound)^[4]
Perihelion	0.8229 AU (q)^[3]
Eccentricity	1.0003^[3] 1.000+ (heliocentric epoch 2475–2500)^[5]
Orbital period	several million years inbound (barycentric solution for epoch 1950)^[4] Ejection trajectory outbound (barycentric solution for epoch 2050)^[4]
Inclination	148.87°^[3]
Last perihelion	15 November 2015^[3]
Jupiter MOID	1.13 AU