The chemical composition of CO-rich comet C/2023 H2 (Lemmon) M. Lippi, L. Ferellec, C. Opitom, S. Faggi, M. J. Mumma and G. L. Villanueva A&A, 689 (2024) A77 Published online: 04 September 2024 DOI: 10.1051/0004-6361/202450634