An all-sky proper-motion map of the Sagittarius stream using Gaia DR2 T. Antoja, P. Ramos, C. Mateu, A. Helmi, F. Anders, C. Jordi and J. A. Carballo-Bello A&A, 635 (2020) L3 Published online: 28 February 2020 DOI: 10.1051/0004-6361/201937145