We have undertaken a detailed abundance analysis of the optical counterpart
of the IR source IRAS16559-2957 with the aim of confirming its possible
post-AGB nature. The star shows solar metallicity and our investigation of a
large number of elements including CNO and 12C/13C suggests that this object
has experienced the first dredge-up and it is likely still at RGB stage.Comment: 10 pages, 4 figures, 4 tables. To be published by Revista Mexicana de
Astronomia y Astrofisica, April 201