The young, wide and very low mass visual binary Lambda Orionis 167 D. Barrado y Navascués, A. Bayo, M. Morales-Calderón, N. Huélamo, J. R. Stauffer and H. Bouy A&A, 468 1 (2007) L5-L8 Published online: 24 April 2007 DOI: 10.1051/0004-6361:20077258