(50000) Quaoar: Surface composition variability M. A. Barucci, C. M. Dalle Ore, D. Perna, D. P. Cruikshank, A. Doressoundiram, A. Alvarez-Candal, E. Dotto and C. Nitschelm A&A, 584 (2015) A107 Published online: 01 December 2015 DOI: 10.1051/0004-6361/201526119