List of unnumbered trans-Neptunian objects: 2018

The following is a partial list of unnumbered trans-Neptunian objects for principal designations assigned within 2018. As of May 2026^[update], it contains a total of 42 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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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
2018 AD₃₉	15 January 2018	Maunakea (568)	217	SDO	169.7	0.77	20	38.9	300.6	albedo: 0.124	MPC · JPL
2018 AG37	15 January 2018	Maunakea (568)	790	centaur	81.4	0.65	19	28.4	134.4	albedo: 0.058	MPC · JPL
2018 AH₃₉	15 January 2018	Maunakea (568)	133	other TNO	55.6	0.18	29	45.7	65.5	albedo: 0.13	MPC · JPL
2018 AK₃₉	15 January 2018	Maunakea (568)	277	centaur	51.7	0.46	15	28.0	75.4	albedo: 0.058	MPC · JPL
2018 AX₁₈	15 January 2018	Maunakea (568)	181	SDO	52.6	0.28	21	37.7	67.5	albedo: 0.124	MPC · JPL
2018 AY₁₈	15 January 2018	Maunakea (568)	125	SDO	65.4	0.38	15	40.4	90.5	albedo: 0.124	MPC · JPL
2018 AZ₁₈	15 January 2018	Maunakea (568)	109	SDO	55.3	0.27	16	40.4	70.1	albedo: 0.124	MPC · JPL
2018 DE₄	17 February 2018	Mt. Lemmon Survey (G96)	2.2	damocloid	31.4	0.92	82	2.4	60.4	albedo: 0.048	MPC · JPL
2018 DF₄	23 February 2018	Mt. Lemmon Survey (G96)	3	damocloid	92.1	0.98	68	1.6	182.6	albedo: 0.048	MPC · JPL
2018 FK₇₆	18 March 2018	Subaru Telescope, Maunakea (T09)	103	twotino	47.8	0.15	2	40.6	54.9	albedo: 0.126	MPC · JPL
2018 FL₇₃	18 March 2018	D. J. Tholen (T09)	138	cubewano (cold)?	44.9	0.12	4	39.4	50.5	albedo: 0.152	MPC · JPL
2018 FL₇₆	18 March 2018	Subaru Telescope, Maunakea (T09)	105	plutino	39.5	0.09	14	36.0	43.0	albedo: 0.074	MPC · JPL
2018 FM₇₆	18 March 2018	Subaru Telescope, Maunakea (T09)	95	cubewano (cold)?	45.3	0.10	3	40.8	49.8	albedo: 0.152	MPC · JPL
2018 FM₇₈	18 March 2018	D. J. Tholen (T09)	130	cubewano (hot)?	42.4	0.11	5	37.9	46.9	albedo: 0.079	MPC · JPL
2018 FO₇₆	18 March 2018	D. J. Tholen (T09)	172	cubewano (hot)?	42.0	0.13	29	36.6	47.5	albedo: 0.079	MPC · JPL
2018 FP₇₆	18 March 2018	D. J. Tholen (T09)	97	cubewano (cold)?	42.5	0.03	4	41.4	43.6	albedo: 0.152	MPC · JPL
2018 FQ₇₆	18 March 2018	D. J. Tholen (T09)	75	cubewano (cold)?	42.8	0.02	2	41.8	43.8	albedo: 0.152	MPC · JPL
2018 FX₇₃	18 March 2018	Subaru Telescope, Maunakea (T09)	131	cubewano (cold)?	44.0	0.06	3	41.2	46.8	albedo: 0.152	MPC · JPL
2018 FY₇₃	18 March 2018	Subaru Telescope, Maunakea (T09)	108	res · 3:5	42.4	0.18	4	35.0	49.8	albedo: 0.126	MPC · JPL
2018 GT₁₂	12 April 2018	Cerro Tololo Observatory, La Serena (807)	114	SDO	96.9	0.65	16	33.7	160.2	albedo: 0.124	MPC · JPL
2018 GT₁₅	12 April 2018	Cerro Tololo Observatory, La Serena (807)	112	other TNO	56.9	0.10	26	51.4	62.4	albedo: 0.13	MPC · JPL
2018 HK₁₄	24 April 2018	Subaru Telescope, Maunakea (T09)	115	cubewano (cold)?	43.1	0.05	2	41.2	45.1	albedo: 0.152	MPC · JPL
2018 HL₁₄	24 April 2018	Subaru Telescope, Maunakea (T09)	102	cubewano (cold)?	43.5	0.05	3	41.5	45.5	albedo: 0.152	MPC · JPL
2018 HM₁₄	24 April 2018	Subaru Telescope, Maunakea (T09)	102	cubewano (cold)?	44.2	0.05	2	41.8	46.6	albedo: 0.152	MPC · JPL
2018 HS₁₂	24 April 2018	D. J. Tholen (T09)	82	res · 3:5	42.2	0.19	15	34.2	50.1	albedo: 0.126	MPC · JPL
2018 HT₁₄	24 April 2018	D. J. Tholen (T09)	105	other TNO	38.3	0.10	2	34.4	42.2	albedo: 0.13	MPC · JPL
2018 JT₆	10 May 2018	Cerro Tololo Observatory, La Serena (807)	161	other TNO	53.1	0.20	27	42.8	63.5	albedo: 0.13	MPC · JPL
2018 JU₆	11 May 2018	Cerro Tololo Observatory, La Serena (807)	157	SDO	51.4	0.25	6	38.4	64.5	albedo: 0.124	MPC · JPL
2018 KH₃	16 May 2018	Mt. Lemmon Survey (G96)	11	damocloid	89.6	0.96	47	3.7	175.5	albedo: 0.048	MPC · JPL
2018 MF₁₃	16 June 2018	DECam (W84)	68	res · 5:8	41.0	0.25	3	30.7	51.3	albedo: 0.126	MPC · JPL
2018 MG₁₃	16 June 2018	DECam (W84)	146	cubewano (hot)?	47.6	0.07	10	44.4	50.9	albedo: 0.079	MPC · JPL
2018 MP₈	16 June 2018	Pan-STARRS 1 (F51)	5	damocloid	335.4	0.99	68	3.8	667.0	albedo: 0.048	MPC · JPL
2018 SQ₁₃	21 September 2018	Mt. Lemmon Survey (G96)	5	damocloid	162.1	0.98	91	3.0	321.3	albedo: 0.048	MPC · JPL
2018 VG18	10 November 2018	Maunakea (568)	610	res · 2:9	82.0	0.53	24	39.0	125.1	albedo: 0.126	MPC · JPL
2018 VJ₁₃₇	8 November 2018	Maunakea (568)	165	SDO	92.1	0.59	19	37.6	146.6	albedo: 0.124	MPC · JPL
2018 VL₂₀₃	8 November 2018	Subaru Telescope, Maunakea (T09)	90	centaur	43.6	0.87	19	5.6	81.7	albedo: 0.058	MPC · JPL
2018 VM₃₅	6 November 2018	Maunakea (568)	106	EDDO	306.8	0.86	9	44.6	568.9	albedo: 0.124	MPC · JPL
2018 VN₁₃₇	8 November 2018	Maunakea (568)	120	SDO	55.3	0.38	17	34.2	76.4	albedo: 0.124	MPC · JPL
2018 VN₃₅	10 November 2018	Maunakea (568)	111	SDO	85.3	0.60	25	34.6	136.0	albedo: 0.124	MPC · JPL
2018 VO₁₃₇	8 November 2018	Maunakea (568)	129	res · 2:5	55.6	0.19	39	45.3	66.0	albedo: 0.126	MPC · JPL
2018 VO₃₅	10 November 2018	Maunakea (568)	162	SDO	95.9	0.63	19	35.5	156.3	albedo: 0.124	MPC · JPL
2018 VP₁₃₇	8 November 2018	Maunakea (568)	109	SDO	55.7	0.39	9	34.2	77.2	albedo: 0.124	MPC · JPL

List of unnumbered trans-Neptunian objects: 2018

2018

References

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