List of unnumbered trans-Neptunian objects: 2012

The following is a partial list of unnumbered trans-Neptunian objects for principal designations assigned within 2012. As of November 2025, it contains a total of 45 bodies.[1][2][3][4][5][6] For more information see the description on the main page. Also see list for the previous and next year.

2012

Main article: List of unnumbered trans-Neptunian objects
Designation First Observed (discovered) D (km) Orbital description Remarks Refs
Date Observer
(Site) 		Class a
(AU) 		e i
(°) 		q
(AU) 		Q
(AU)
2012 BV154 19 January 2012 Pan-STARRS 1 (F51) 197 cubewano (hot)? 46.9 0.2 12 37.6 56.3 — MPC · JPL
2012 BY154 21 January 2012 Pan-STARRS 1 (F51) 155 res · 3:5 42.3 0.17 7 35.2 49.5 — MPC · JPL
2012 DQ106 16 February 2012 Pan-STARRS 1 (F51) 134 res · 4:7? 43.8 0.17 1 36.4 51.2 — MPC · JPL
2012 DV121 16 February 2012 Pan-STARRS 1 (F51) 148 SDO 64.2 0.44 33 36.1 92.4 — MPC · JPL
2012 DZ98 16 February 2012 Pan-STARRS 1 (F51) 149 cubewano (cold) 42.7 0.02 3 41.8 43.6 — MPC · JPL
2012 FH84 25 March 2012 Las Campanas Obs. (304) 140 SDO 57.9 0.3 4 40.3 75.5 — MPC · JPL
2012 FN84 25 March 2012 Las Campanas Obs. (304) 104 SDO 52.6 0.35 8 34 71.1 — MPC · JPL
2012 GU11 12 April 2012 Pan-STARRS 1 (F51) 92 centaur 174.1 0.9 11 18.2 330 — MPC · JPL
2012 GX17 14 April 2012 Pan-STARRS 1 (F51) 167 centaur 37.5 0.55 33 16.8 58.2 — MPC · JPL
2012 HD2 18 April 2012 Spacewatch (691) 5 damocloid 61 0.96 147 2.5 119.4 — MPC · JPL
2012 HE85 18 April 2012 New Horizons KBO Search (268) 62 res · 5:9 44.3 0.09 3 40.2 48.5 — MPC · JPL
2012 HW87 21 April 2012 Pan-STARRS 1 (F51) 114 SDO 90.7 0.64 14 32.4 149 — MPC · JPL
2012 OL6 22 July 2012 Mauna Kea Obs. (568) 137 SDO 54.1 0.3 9 37.8 70.5 — MPC · JPL
2012 SB67 26 September 2012 Pan-STARRS 1 (F51) 246 cubewano (hot)? 47.3 0.14 18 40.5 54 — MPC · JPL
2012 TE324 8 October 2012 Pan-STARRS 1 (F51) 232 cubewano (hot) 46.4 0.13 6 40.6 52.3 — MPC · JPL
2012 TF324 9 October 2012 Pan-STARRS 1 (F51) 225 cubewano (hot) 43.6 0.12 8 38.6 48.7 — MPC · JPL
2012 TF359 6 October 2012 Pan-STARRS 1 (F51) 265 cubewano (hot)? 42.3 0.07 25 39.4 45.3 — MPC · JPL
2012 TL139 9 October 2012 Pan-STARRS 1 (F51) 6 damocloid 30.2 0.88 160 3.6 56.8 — MPC · JPL
2012 UD178 21 October 2012 Pan-STARRS 1 (F51) 122 res · 2:5 55.9 0.42 9 32.2 79.5 — MPC · JPL
2012 UE185 23 October 2012 Pan-STARRS 1 (F51) 246 cubewano (hot)? 42.1 0.16 21 35.6 48.6 — MPC · JPL
2012 UG177 20 October 2012 M. Alexandersen (568) 59 plutino 39.6 0.23 22 30.5 48.7 — MPC · JPL
2012 UH177 21 October 2012 M. Alexandersen (568) 129 plutino 39.5 0.19 24 32.2 46.9 — MPC · JPL
2012 UJ177 21 October 2012 M. Alexandersen (568) 57 res · 2:5 55.7 0.44 16 31.4 79.9 — MPC · JPL
2012 UK177 20 October 2012 M. Alexandersen (568) 69 SDO 94 0.62 25 35.4 152.7 — MPC · JPL
2012 UL177 20 October 2012 M. Alexandersen (568) 152 cubewano (hot)? 40.9 0.12 19 35.9 46 — MPC · JPL
2012 UM177 20 October 2012 M. Alexandersen (568) 90 cubewano (hot)? 43.8 0.06 16 41.2 46.4 — MPC · JPL
2012 UN177 20 October 2012 M. Alexandersen (568) 146 cubewano (hot)? 43.5 0.17 20 36.3 50.7 — MPC · JPL
2012 UO177 21 October 2012 M. Alexandersen (568) 103 cubewano (hot)? 41.8 0.03 16 40.6 43 — MPC · JPL
2012 UP177 21 October 2012 M. Alexandersen (568) 113 cubewano (hot)? 43.1 0.1 17 38.7 47.5 — MPC · JPL
2012 UQ177 20 October 2012 M. Alexandersen (568) 91 SDO 52.5 0.32 20 35.8 69.2 — MPC · JPL
2012 UR177 21 October 2012 M. Alexandersen (568) 99 SDO 74.9 0.5 16 37.5 112.2 — MPC · JPL
2012 US177 21 October 2012 M. Alexandersen (568) 69 SDO 56.6 0.37 17 35.6 77.5 — MPC · JPL
2012 UT177 21 October 2012 Mauna Kea Obs. (568) 143 cubewano (hot)? 47.7 0.12 16 41.9 53.5 — MPC · JPL
2012 UU177 21 October 2012 Mauna Kea Obs. (568) 99 cubewano (hot)? 43.8 0.04 16 42.3 45.3 — MPC · JPL
2012 UV177 20 October 2012 Mauna Kea Obs. (568) 77 nep trj 30.2 0.08 21 27.9 32.5 — MPC · JPL
2012 UW177 20 October 2012 M. Alexandersen (568) 30 centaur 30.3 0.26 54 22.3 38.3 — MPC · JPL
2012 VB116 8 November 2012 Pan-STARRS 1 (F51) 437 cubewano (hot)? 47.4 0.16 23 39.8 55 — MPC · JPL
2012 VP113 5 November 2012 Cerro Tololo Obs. (807) 585 Sednoid 269.7 0.7 24 80.6 458.7 — MPC · JPL
2012 WE37 16 November 2012 Cerro Tololo-DECam (W84) 104 twotino 48 0.25 26 36 60.1 — MPC · JPL
2012 WF37 16 November 2012 Cerro Tololo-DECam (W84) 110 plutino 39.8 0.3 19 28 51.6 — MPC · JPL
2012 WG37 19 November 2012 Cerro Tololo-DECam (W84) 181 SDO 49.4 0.35 14 32.3 66.5 — MPC · JPL
2012 XW159 9 December 2012 Pan-STARRS 1 (F51) 162 plutino 39.8 0.21 21 31.3 48.4 — MPC · JPL
2012 YF12 23 December 2012 Pan-STARRS 1 (F51) 294 cubewano (hot)? 43.9 0.14 28 37.6 50.1 — MPC · JPL
2012 YG12 30 December 2012 Pan-STARRS 1 (F51) 194 plutino 39.7 0.22 31 31 48.4 — MPC · JPL
2012 YO9 17 December 2012 Dark Energy Survey (W84) 109 res · 4:7 44 0.17 15 36.4 51.6 — MPC · JPL

References

  1. ^ a b "List Of Transneptunian Objects". Minor Planet Center. 24 October 2025. Retrieved 24 October 2025.
  2. ^ a b "List Of Centaurs and Scattered-Disk Objects". Minor Planet Center. 24 October 2025. Retrieved 24 October 2025.
  3. ^ a b "List Of Neptune Trojans". Minor Planet Center. 24 October 2025.
  4. ^ a b "List Of Other Unusual Objects". Minor Planet Center. 24 October 2025. Retrieved 24 October 2025.
  5. ^ a b "MPC Database Search: a ≥ 30.1 AU". Minor Planet Center. Archived from the original on 2 November 2025. Retrieved 2 November 2025. 5561 trans-Neptunian objects
  6. ^ a b "List of Known Trans-Neptunian Objects". Johnston's Archive. 24 June 2025. Retrieved 24 October 2025.

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