LX Cygni: A carbon star is born S. Uttenthaler, S. Meingast, T. Lebzelter, B. Aringer, R. R. Joyce, K. Hinkle, L. Guzman-Ramirez and R. Greimel A&A, 585 (2016) A145 Published online: 13 January 2016 DOI: 10.1051/0004-6361/201526619