DE0823−49 is a juvenile binary brown dwarf at 20.7 pc J. Sahlmann, A. J. Burgasser, E. L. Martín, P. F. Lazorenko, D. C. Bardalez Gagliuffi, M. Mayor, D. Ségransan, D. Queloz and S. Udry A&A, 579 (2015) A61 Published online: 29 June 2015 DOI: 10.1051/0004-6361/201425536