The following is a partial list of unnumbered trans-Neptunian objects for principal designations assigned within 2009. , it contains a total of 44 bodies. 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 e i q Q 27 February 2009 LINEAR () 4 damocloid 43.7 0.95 107 2.2 85.2 albedo: 0.048 18 February 2009 Maunakea () 183 res4:13 65.6 0.43 18 37.4 93.8 albedo: 0.126 18 February 2009 Maunakea () 75 cubewano (hot)? 43.5 0.17 10 36.0 51.1 albedo: 0.079 18 February 2009 Maunakea () 145 cubewano (hot) 43.5 0.05 11 41.3 45.7 albedo: 0.079 18 February 2009 Maunakea () 50 SDO 54.3 0.34 16 35.9 72.8 albedo: 0.124 18 February 2009 Maunakea () 86 plutino 39.2 0.20 11 31.6 46.9 albedo: 0.074 18 February 2009 Maunakea () 82 cubewano (hot) 44.1 0.12 12 38.7 49.5 albedo: 0.079 18 February 2009 Maunakea () 101 cubewano (hot)? 43.6 0.10 16 39.1 48.1 albedo: 0.079 18 February 2009 Maunakea () 93 other TNO 44.3 0.27 11 32.5 56.2 albedo: 0.13 18 February 2009 Maunakea () 147 cubewano (hot) 46.8 0.16 10 39.5 54.1 albedo: 0.079 18 February 2009 Maunakea () 77 other TNO 49.2 0.24 11 37.2 61.1 albedo: 0.13 22 February 2009 Maunakea () 40 other TNO 38.3 0.12 30 33.5 43.0 albedo: 0.13 14 May 2009 Maunakea () 165 cubewano (hot)? 43.6 0.02 15 42.8 44.3 albedo: 0.079 14 May 2009 Maunakea () 165 cubewano (hot)? 41.7 0.13 23 36.4 47.0 albedo: 0.079 15 May 2009 Maunakea () 117 other TNO 50.8 0.32 31 34.5 67.0 albedo: 0.13 15 May 2009 Maunakea () 104 other TNO 40.6 0.16 21 34.2 46.9 albedo: 0.13 15 May 2009 Maunakea () 224 plutino 39.3 0.30 22 27.6 51.0 albedo: 0.074 15 May 2009 Maunakea () 77 other TNO 44.0 0.30 16 30.8 57.2 albedo: 0.13 14 May 2009 Maunakea () 70 other TNO 44.0 0.27 19 32.2 55.8 albedo: 0.13 14 May 2009 Maunakea () 75 SDO 56.4 0.32 27 38.3 74.5 albedo: 0.124 14 May 2009 Maunakea () 103 cubewano (hot) 45.0 0.15 14 38.2 51.8 albedo: 0.079 14 May 2009 Maunakea () 94 cubewano (hot)? 46.1 0.11 18 41.0 51.1 albedo: 0.079 14 May 2009 Maunakea () 61 centaur 37.6 0.46 20 20.2 55.0 albedo: 0.058 14 May 2009 Maunakea () 72 SDO 54.3 0.45 22 30.1 78.6 albedo: 0.124 27 May 2009 Maunakea () 72 SDO 53.7 0.37 15 33.9 73.4 albedo: 0.124 25 May 2009 Maunakea () 103 cubewano (hot)? 46.6 0.19 31 37.8 55.4 albedo: 0.079 25 May 2009 M. Yagi () 143 SDO 59.8 0.37 14 37.5 82.1 albedo: 0.124 25 May 2009 M. Yagi () 150 cubewano (hot)? 45.5 0.20 23 36.3 54.7 albedo: 0.079 25 May 2009 Maunakea () 54 cubewano (cold)? 41.7 0.01 4 41.4 42.0 albedo: 0.152 25 May 2009 M. Yagi () 98 res2:7 68.8 0.56 5 30.4 107.2 albedo: 0.126 25 May 2009 M. Yagi () 90 cubewano (hot) 44.1 0.07 9 40.8 47.3 albedo: 0.079 20 May 2009 Maunakea () 106 other TNO 61.7 0.10 90 55.3 68.1 albedo: 0.13 20 May 2009 Maunakea () 68 cubewano (hot)? 43.0 0.16 20 35.9 50.1 albedo: 0.079 25 May 2009 Maunakea () 106 cubewano (hot)? 42.9 0.10 16 38.5 47.3 albedo: 0.079 27 May 2009 Maunakea () 90 cubewano (hot)? 41.3 0.01 28 40.9 41.6 albedo: 0.079 27 May 2009 Maunakea () 103 SDO 90.2 0.57 19 38.4 142.0 albedo: 0.124 27 May 2009 Maunakea () 84 centaur 51.2 0.46 25 27.7 74.8 albedo: 0.058 27 May 2009 Maunakea () 32 other TNO 48.4 0.59 17 20.0 76.8 albedo: 0.13 21 June 2009 S. S. Sheppard, C. A. Trujillo () 55 centaur 33.5 0.33 3 22.6 44.4 albedo: 0.058 27 June 2009 S. S. Sheppard, A. Udalski, C. A. Trujillo, K. Ulaczyk () 213 cubewano (hot)? 41.5 0.14 27 35.7 47.4 albedo: 0.079 27 June 2009 C. A. Trujillo, A. Udalski, S. S. Sheppard, I. Soszynski () 149 twotino 47.7 0.35 20 31.0 64.4 albedo: 0.126 18 October 2009 Maunakea () 171 cubewano (cold) 43.2 0.03 1 42.1 44.2 albedo: 0.152 26 November 2009 Mt. Lemmon Survey () 1.1 damocloid 31.3 0.96 9 1.4 61.2 albedo: 0.048 8 December 2009 Pan-STARRS 1 () 147 centaur 43.7 0.42 22 25.3 62.2 albedo: 0.058

References