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(26375) 1999 DE9 : ウィキペディア英語版 | (26375) 1999 DE9
(also written (26375) 1999 DE9) is a trans-Neptunian object. Light-curve-amplitude analysis shows only small deviations, suggesting is a spheroid with small albedo spots.〔Tancredi, G., & Favre, S. (2008) (''Which are the dwarfs in the Solar System?'' ). Depto. Astronomía, Fac. Ciencias, Montevideo, Uruguay; Observatorio Astronómico Los Molinos, MEC, Uruguay. Retrieved August 10, 2011〕 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.〔(Icy Dwarf Planets and TNOs )〕 orbit is in 2:5 resonance with Neptune's.〔 Spectral analysis has shown traces of ice.〔(Fig 3 for 1999 DE9 )〕 ==References==
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