Dust properties and their variations in comet C/2013 X1 (PANSTARRS) Olena Shubina, Evgenij Zubko, Valerii Kleshchonok, Oleksandra V. Ivanova, Marek Husárik and Gorden Videen A&A, 687 (2024) A297 Published online: 24 July 2024 DOI: 10.1051/0004-6361/202449145