(26375) 1999 DE9 (provisional designation 1999 DE9) is a trans-Neptunian object and a possible dwarf planet. 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.
(26375) 1999 DE9 orbit is in 2:5 resonance with Neptune's. Spectral analysis has shown traces of ice.
References
External links
- (26375) 1999 DE9 at the JPL Small-Body Database
