Diameter and photospheric structures of Canopus from AMBER/VLTI interferometry A. Domiciano de Souza, P. Bendjoya, F. Vakili, F. Millour and R. G. Petrov A&A, 489 2 (2008) L5-L8 Published online: 18 August 2008 DOI: 10.1051/0004-6361:200810450