Orbiting a binary - SPHERE characterisation of the HD 284149 system M. Bonavita, V. D’Orazi, D. Mesa, C. Fontanive, S. Desidera, S. Messina, S. Daemgen, R. Gratton, A. Vigan, M. Bonnefoy et al. (46 more) A&A, 608 (2017) A106 Published online: 12 December 2017 DOI: 10.1051/0004-6361/201731003