The Following text was taken from the ESA Science site: URL: http://isowww.estec.esa.nl/science/
LWS spectrum of W Hya between 122-183 microns, with some of the strongest water vapour lines marked.
This image was taken from the ISO dedicated Astronomy and Astrophysics Letter; "The rich far-infrared water vapour spectrum of W Hya", by M.J., Barlow.
INFRARED PROCESSING AND ANALYSIS CENTER