List of unnumbered trans-Neptunian objects: 2019

The following is a partial list of unnumbered trans-Neptunian objects for principal designations assigned within 2019. As of November 2025^[update], it contains a total of 251 bodies.^[1]^[2]^[3]^[4]^[5] For more information see the description on the main page. Also see list for the previous and next year.

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[2]

[3]

[4]

[5]

v t e Trans-Neptunian objects
TNO classes	Classical Kuiper belt objects Scattered-disc objects Detached objects Resonant objects Neptune trojans plutinos twotinos TNO moons
Dwarf planets (moons)	Orcus Vanth Pluto Charon Styx Nix Kerberos Hydra Haumea Namaka Hiʻiaka ring Quaoar Weywot rings Makemake MK2 Gonggong Xiangliu Eris Dysnomia Sedna
Sednoids	Sedna 2012 VP113 'Biden' Leleākūhonua 2023 KQ14 'Ammonite'

List of unnumbered trans-Neptunian objects: 2019

References

Related Articles

Designation	First Observed (discovered)		D (km)	Orbital description						Remarks	Refs
Designation	Date	Observer (Site)	D (km)	Class	a (AU)	e	i (°)	q (AU)	Q (AU)	Remarks	Refs
2019 AC₇₇	11 January 2019	Cerro Tololo Obs. (807)	181	SDO	57.7	0.38	12	35.9	79.5	—	MPC · JPL
2019 AG₁₄₂	11 January 2019	D. J. Tholen (T09)	92	cubewano (hot)?	46.9	0.24	8	35.8	58	—	MPC · JPL
2019 AJ₁₄₂	11 January 2019	D. J. Tholen (T09)	71	res · 3:5	42.1	0.25	6	31.8	52.5	—	MPC · JPL
2019 AK₁₄₂	11 January 2019	D. J. Tholen (T09)	79	SDO	61.2	0.41	18	35.9	86.5	—	MPC · JPL
2019 AL₁₄₂	11 January 2019	D. J. Tholen (T09)	144	other TNO	46.6	0.19	11	37.6	55.6	—	MPC · JPL
2019 AM₁₄₂	11 January 2019	D. J. Tholen (T09)	68	SDO	72.7	0.56	10	32.2	113.3	—	MPC · JPL
2019 AN₁₄₂	11 January 2019	D. J. Tholen (T09)	86	SDO	95.2	0.6	15	38.2	152.2	—	MPC · JPL
2019 AO₁₄₂	11 January 2019	D. J. Tholen (T09)	90	SDO	141.1	0.72	25	39.2	242.9	—	MPC · JPL
2019 AQ₁₄₂	6 January 2019	D. J. Tholen (T09)	72	other TNO	33.5	0.1	15	30.3	36.7	—	MPC · JPL
2019 AR₁₄₃	6 January 2019	Mauna Kea-Subaru (T09)	128	other TNO	52.4	0.26	31	38.7	66.1	—	MPC · JPL
2019 AS₁₄₂	6 January 2019	D. J. Tholen (T09)	75	SDO	62.2	0.36	34	39.6	84.7	—	MPC · JPL
2019 AT₁₄₂	6 January 2019	D. J. Tholen (T09)	81	res · 3:4	36.5	0.19	18	29.7	43.3	—	MPC · JPL
2019 AU₁₃₈	6 January 2019	D. J. Tholen (T09)	99	other TNO	31.2	0.02	18	30.5	31.9	—	MPC · JPL
2019 CB₃₁	5 February 2019	D. J. Tholen (T09)	113	cubewano (hot)?	42.8	0.07	6	39.7	45.8	—	MPC · JPL
2019 CC₃₀	5 February 2019	D. J. Tholen (T09)	102	cubewano (cold)?	43.7	0.03	4	42.2	45.2	—	MPC · JPL
2019 CC₃₁	5 February 2019	D. J. Tholen (T09)	141	other TNO	49.8	0.28	17	36	63.7	—	MPC · JPL
2019 CC₃₂	4 February 2019	Mauna Kea-Subaru (T09)	64	plutino?	39.8	0.11	14	35.6	43.9	—	MPC · JPL
2019 CD₃₀	4 February 2019	D. J. Tholen (T09)	78	other TNO	41.4	0.03	17	40.4	42.5	—	MPC · JPL
2019 CE₃₀	5 February 2019	D. J. Tholen (T09)	87	cubewano (cold)?	42.9	0.04	4	41.3	44.5	—	MPC · JPL
2019 CE₃₂	4 February 2019	Mauna Kea-Subaru (T09)	98	res · 3:5	42.3	0.15	7	35.8	48.8	—	MPC · JPL
2019 CF₃₀	5 February 2019	D. J. Tholen (T09)	85	cubewano (hot)?	42.5	0.12	6	37.6	47.4	—	MPC · JPL
2019 CF₃₂	4 February 2019	Mauna Kea-Subaru (T09)	124	cubewano (cold)?	44.1	0.04	3	42.3	45.9	—	MPC · JPL
2019 CG₃₀	5 February 2019	D. J. Tholen (T09)	61	cubewano (cold)?	43.1	0.06	5	40.4	45.7	—	MPC · JPL
2019 CH₃₀	5 February 2019	D. J. Tholen (T09)	72	cubewano (cold)?	45.2	0.12	4	39.8	50.6	—	MPC · JPL
2019 CH₃₂	5 February 2019	Mauna Kea-Subaru (T09)	53	cubewano (cold)?	43	0.04	2	41.2	44.8	—	MPC · JPL
2019 CJ₃₀	4 February 2019	D. J. Tholen (T09)	128	cubewano (cold)?	43.4	0.05	2	41.3	45.6	—	MPC · JPL
2019 CK₃₁	4 February 2019	Mauna Kea-Subaru (T09)	131	centaur	137.3	0.8	11	27.2	247.3	—	MPC · JPL
2019 CK₃₂	4 February 2019	D. J. Tholen (T09)	75	cubewano (cold)?	43.1	0.09	3	39.4	46.8	—	MPC · JPL
2019 CL₃₀	5 February 2019	D. J. Tholen (T09)	57	cubewano (hot)?	42.2	0.07	7	39.1	45.2	—	MPC · JPL
2019 CL₃₁	5 February 2019	Mauna Kea-Subaru (T09)	131	cubewano (hot)?	44	0.1	29	39.5	48.6	—	MPC · JPL
2019 CL₃₂	4 February 2019	D. J. Tholen (T09)	51	cubewano (cold)?	48.6	0.1	1	43.7	53.5	—	MPC · JPL
2019 CM₃₀	4 February 2019	D. J. Tholen (T09)	81	res · 3:5	42.3	0.15	2	36.1	48.5	—	MPC · JPL
2019 CM₃₁	5 February 2019	Mauna Kea-Subaru (T09)	91	res · 5:12	53.7	0.32	5	36.6	70.9	—	MPC · JPL
2019 CM₃₂	4 February 2019	D. J. Tholen (T09)	84	cubewano (cold)?	42.7	0.02	2	41.9	43.6	—	MPC · JPL
2019 CN₃₀	4 February 2019	D. J. Tholen (T09)	37	centaur	57	0.61	16	22.1	92	—	MPC · JPL
2019 CN₃₁	5 February 2019	Mauna Kea-Subaru (T09)	174	SDO	70.4	0.45	21	38.7	102.2	—	MPC · JPL
2019 CN₃₂	4 February 2019	D. J. Tholen (T09)	62	res · 4:7	43.7	0.19	5	35.3	52.1	—	MPC · JPL
2019 CN₃₃	5 February 2019	D. J. Tholen (T09)	146	centaur	33.7	0.42	25	19.6	47.8	—	MPC · JPL
2019 CO₃₀	4 February 2019	D. J. Tholen (T09)	63	res · 3:5	42.2	0.22	10	33.1	51.2	—	MPC · JPL