Evolution of the local spiral structure of the Milky Way revealed by open clusters C. J. Hao, Y. Xu, L. G. Hou, S. B. Bian, J. J. Li, Z. Y. Wu, Z. H. He, Y. J. Li and D. J. Liu A&A, 652 (2021) A102 Published online: 17 August 2021 DOI: 10.1051/0004-6361/202140608