A portrait of the extreme solar system object 2012 DR30 Cs. Kiss, Gy. Szabó, J. Horner, B. C. Conn, T. G. Müller, E. Vilenius, K. Sárneczky, L. L. Kiss, M. Bannister, D. Bayliss et al. (8 more) A&A, 555 (2013) A3 Published online: 18 June 2013 DOI: 10.1051/0004-6361/201321147