title: Jupiter: an unidentified feature in the 5-micron spectrum of the north equatorial belt.
abstract: Grating spectra of the North Equatorial Belt of Jupiter 4.5 and 5.1 microns, obtained with a nominal resolving power of 180, are presented. An absorption feature centered at 4.73 microns and not due to a known constituent has been found. Its possible identification is discussed.
authors.forename: G
authors.initials: G
authors.lastname: Mlnch
authors.forename: G
authors.initials: G
authors.lastname: Neugebauer