Discovery date 20 February 1999 Minor planet category TNO2:5 resonance Aphelion 79.663 AU (11.9174 Tm) Inclination 7.6076° Orbits Sun | MPC designation (26375) 1999 DE9 Observation arc 6619 days (18.12 yr) Discovered 20 February 1999 Argument of perihelion 160.236° | |
Discovered by Chadwick A. Trujillo andJane X. Luu Discovery site Kitt Peak National Observatory Similar (84922) 2003 VS2, (119951) 2002 KX14, 2008 ST291, (229762) 2007 UK126, 38083 Rhadamanthus | ||
(26375) 1999 DE9 (also written (26375) 1999 DE9) is a trans-Neptunian object. Light-curve-amplitude analysis shows only small deviations, suggesting (26375) 1999 DE9 is a spheroid with small albedo spots. Measurements by the Spitzer Space Telescope estimate that it is 461 ± 45 km in diameter. It was discovered in 1999 by Chad Trujillo and Jane X. Luu. It is possibly a dwarf planet.
(26375) 1999 DE9 orbit is in 2:5 resonance with Neptune's. Spectral analysis has shown traces of ice.
References
(26375) 1999 DE9 Wikipedia(Text) CC BY-SA