The spectrum of comet Hale-Bopp (C/1995 O1) observed with the infrared space observatory at 2.9 astronomical units from the sun.

Altieri, B.; Keller, H. U.; Lellouch, E.; Crovisier, J.; Bockelee-Morvan, D.; Leech, K.; Brooke, T. Y.; Hanner, M. S.

1997 Science
ISO 466