List of unnumbered trans-Neptunian objects: 2009
The following is a partial list of unnumbered trans-Neptunian objects for principal designations assigned within 2009. As of May 2026, it contains a total of 44 bodies.[1][2][3][4] For more information see the description on the main page. Also see list for the previous and next year.
2009
| Designation | First Observed (discovered) | D (km) | Orbital description | Remarks | Refs | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Date | Observer (Site) |
Class | a (AU) |
e | i (°) |
q (AU) |
Q (AU) | ||||
| 2009 DD47 | 27 February 2009 | LINEAR (704) | 4 | damocloid | 43.7 | 0.95 | 107 | 2.2 | 85.2 | albedo: 0.048 | MPC · JPL |
| 2009 DJ143 | 18 February 2009 | Maunakea (568) | 183 | res · 4:13 | 65.6 | 0.43 | 18 | 37.4 | 93.8 | albedo: 0.126 | MPC · JPL |
| 2009 DK143 | 18 February 2009 | Maunakea (568) | 75 | cubewano (hot)? | 43.5 | 0.17 | 10 | 36.0 | 51.1 | albedo: 0.079 | MPC · JPL |
| 2009 DL143 | 18 February 2009 | Maunakea (568) | 145 | cubewano (hot) | 43.5 | 0.05 | 11 | 41.3 | 45.7 | albedo: 0.079 | MPC · JPL |
| 2009 DM143 | 18 February 2009 | Maunakea (568) | 50 | SDO | 54.3 | 0.34 | 16 | 35.9 | 72.8 | albedo: 0.124 | MPC · JPL |
| 2009 DN143 | 18 February 2009 | Maunakea (568) | 86 | plutino | 39.2 | 0.20 | 11 | 31.6 | 46.9 | albedo: 0.074 | MPC · JPL |
| 2009 DO143 | 18 February 2009 | Maunakea (568) | 82 | cubewano (hot) | 44.1 | 0.12 | 12 | 38.7 | 49.5 | albedo: 0.079 | MPC · JPL |
| 2009 DP143 | 18 February 2009 | Maunakea (568) | 101 | cubewano (hot)? | 43.6 | 0.10 | 16 | 39.1 | 48.1 | albedo: 0.079 | MPC · JPL |
| 2009 DQ143 | 18 February 2009 | Maunakea (568) | 93 | other TNO | 44.3 | 0.27 | 11 | 32.5 | 56.2 | albedo: 0.13 | MPC · JPL |
| 2009 DR143 | 18 February 2009 | Maunakea (568) | 147 | cubewano (hot) | 46.8 | 0.16 | 10 | 39.5 | 54.1 | albedo: 0.079 | MPC · JPL |
| 2009 DS143 | 18 February 2009 | Maunakea (568) | 77 | other TNO | 49.2 | 0.24 | 11 | 37.2 | 61.1 | albedo: 0.13 | MPC · JPL |
| 2009 DT143 | 22 February 2009 | Maunakea (568) | 40 | other TNO | 38.3 | 0.12 | 30 | 33.5 | 43.0 | albedo: 0.13 | MPC · JPL |
| 2009 JA19 | 14 May 2009 | Maunakea (568) | 165 | cubewano (hot)? | 43.6 | 0.02 | 15 | 42.8 | 44.3 | albedo: 0.079 | MPC · JPL |
| 2009 JB19 | 14 May 2009 | Maunakea (568) | 165 | cubewano (hot)? | 41.7 | 0.13 | 23 | 36.4 | 47.0 | albedo: 0.079 | MPC · JPL |
| 2009 JC19 | 15 May 2009 | Maunakea (568) | 117 | other TNO | 50.8 | 0.32 | 31 | 34.5 | 67.0 | albedo: 0.13 | MPC · JPL |
| 2009 JD19 | 15 May 2009 | Maunakea (568) | 104 | other TNO | 40.6 | 0.16 | 21 | 34.2 | 46.9 | albedo: 0.13 | MPC · JPL |
| 2009 JE19 | 15 May 2009 | Maunakea (568) | 224 | plutino | 39.3 | 0.30 | 22 | 27.6 | 51.0 | albedo: 0.074 | MPC · JPL |
| 2009 JF19 | 15 May 2009 | Maunakea (568) | 77 | other TNO | 44.0 | 0.30 | 16 | 30.8 | 57.2 | albedo: 0.13 | MPC · JPL |
| 2009 JT18 | 14 May 2009 | Maunakea (568) | 70 | other TNO | 44.0 | 0.27 | 19 | 32.2 | 55.8 | albedo: 0.13 | MPC · JPL |
| 2009 JU18 | 14 May 2009 | Maunakea (568) | 75 | SDO | 56.4 | 0.32 | 27 | 38.3 | 74.5 | albedo: 0.124 | MPC · JPL |
| 2009 JV18 | 14 May 2009 | Maunakea (568) | 103 | cubewano (hot) | 45.0 | 0.15 | 14 | 38.2 | 51.8 | albedo: 0.079 | MPC · JPL |
| 2009 JW18 | 14 May 2009 | Maunakea (568) | 94 | cubewano (hot)? | 46.1 | 0.11 | 18 | 41.0 | 51.1 | albedo: 0.079 | MPC · JPL |
| 2009 JX18 | 14 May 2009 | Maunakea (568) | 61 | centaur | 37.6 | 0.46 | 20 | 20.2 | 55.0 | albedo: 0.058 | MPC · JPL |
| 2009 JY18 | 14 May 2009 | Maunakea (568) | 72 | SDO | 54.3 | 0.45 | 22 | 30.1 | 78.6 | albedo: 0.124 | MPC · JPL |
| 2009 KA37 | 27 May 2009 | Maunakea (568) | 72 | SDO | 53.7 | 0.37 | 15 | 33.9 | 73.4 | albedo: 0.124 | MPC · JPL |
| 2009 KJ30 | 25 May 2009 | Maunakea (568) | 103 | cubewano (hot)? | 46.6 | 0.19 | 31 | 37.8 | 55.4 | albedo: 0.079 | MPC · JPL |
| 2009 KK30 | 25 May 2009 | M. Yagi (568) | 143 | SDO | 59.8 | 0.37 | 14 | 37.5 | 82.1 | albedo: 0.124 | MPC · JPL |
| 2009 KL30 | 25 May 2009 | M. Yagi (568) | 150 | cubewano (hot)? | 45.5 | 0.20 | 23 | 36.3 | 54.7 | albedo: 0.079 | MPC · JPL |
| 2009 KM30 | 25 May 2009 | Maunakea (568) | 54 | cubewano (cold)? | 41.7 | 0.01 | 4 | 41.4 | 42.0 | albedo: 0.152 | MPC · JPL |
| 2009 KN30 | 25 May 2009 | M. Yagi (568) | 98 | res · 2:7 | 68.8 | 0.56 | 5 | 30.4 | 107.2 | albedo: 0.126 | MPC · JPL |
| 2009 KO30 | 25 May 2009 | M. Yagi (568) | 90 | cubewano (hot) | 44.1 | 0.07 | 9 | 40.8 | 47.3 | albedo: 0.079 | MPC · JPL |
| 2009 KT36 | 20 May 2009 | Maunakea (568) | 106 | other TNO | 61.7 | 0.10 | 90 | 55.3 | 68.1 | albedo: 0.13 | MPC · JPL |
| 2009 KU36 | 20 May 2009 | Maunakea (568) | 68 | cubewano (hot)? | 43.0 | 0.16 | 20 | 35.9 | 50.1 | albedo: 0.079 | MPC · JPL |
| 2009 KV36 | 25 May 2009 | Maunakea (568) | 106 | cubewano (hot)? | 42.9 | 0.10 | 16 | 38.5 | 47.3 | albedo: 0.079 | MPC · JPL |
| 2009 KW36 | 27 May 2009 | Maunakea (568) | 90 | cubewano (hot)? | 41.3 | 0.01 | 28 | 40.9 | 41.6 | albedo: 0.079 | MPC · JPL |
| 2009 KX36 | 27 May 2009 | Maunakea (568) | 103 | SDO | 90.2 | 0.57 | 19 | 38.4 | 142.0 | albedo: 0.124 | MPC · JPL |
| 2009 KY36 | 27 May 2009 | Maunakea (568) | 84 | centaur | 51.2 | 0.46 | 25 | 27.7 | 74.8 | albedo: 0.058 | MPC · JPL |
| 2009 KZ36 | 27 May 2009 | Maunakea (568) | 32 | other TNO | 48.4 | 0.59 | 17 | 20.0 | 76.8 | albedo: 0.13 | MPC · JPL |
| 2009 MA10 | 21 June 2009 | S. S. Sheppard, C. A. Trujillo (568) | 55 | centaur | 33.5 | 0.33 | 3 | 22.6 | 44.4 | albedo: 0.058 | MPC · JPL |
| 2009 MF10 | 27 June 2009 | S. S. Sheppard, A. Udalski, C. A. Trujillo, K. Ulaczyk (807) | 213 | cubewano (hot)? | 41.5 | 0.14 | 27 | 35.7 | 47.4 | albedo: 0.079 | MPC · JPL |
| 2009 MG10 | 27 June 2009 | C. A. Trujillo, A. Udalski, S. S. Sheppard, I. Soszynski (807) | 149 | twotino | 47.7 | 0.35 | 20 | 31.0 | 64.4 | albedo: 0.126 | MPC · JPL |
| 2009 UF156 | 18 October 2009 | Maunakea (568) | 171 | cubewano (cold) | 43.2 | 0.03 | 1 | 42.1 | 44.2 | albedo: 0.152 | MPC · JPL |
| 2009 WX199 | 26 November 2009 | Mt. Lemmon Survey (G96) | 1.1 | damocloid | 31.3 | 0.96 | 9 | 1.4 | 61.2 | albedo: 0.048 | MPC · JPL |
| 2009 XM26 | 8 December 2009 | Pan-STARRS 1 (F51) | 147 | centaur | 43.7 | 0.42 | 22 | 25.3 | 62.2 | albedo: 0.058 | MPC · JPL |
References
- ↑ "List Of Transneptunian Objects". Minor Planet Center. 16 April 2022. Retrieved 16 April 2022.
- ↑ "List Of Centaurs and Scattered-Disk Objects". Minor Planet Center. 16 April 2022. Retrieved 16 April 2022.
- ↑ "MPC Database Search: a ≥ 30.1 AU". Minor Planet Center. Archived from the original on 2 October 2025. Retrieved 2 October 2025.
5542 trans-Neptunian objects
- ↑ "List of Known Trans-Neptunian Objects". Johnston's Archive. 2 January 2022. Retrieved 16 April 2022.
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