Abstract
ABSTRACT A discussion of the available data for CRL 2688 suggests that it is most likely not a pre -main -sequence object, although it cannot be conclusively shown that it is an evolved star losing mass. Its spectrum in both the blue and near-infrared lacks the strong emission features seen in the spectra of young stars, and the energy distribution is more like those of evolved stars. The kinematic data from the optical spectrum and molecular radio observations imply that CRL 2688 may have a large peculiar velocity inappropriate for a young star. CRL 2688 is also not directly associated with emission nebulosity or a dusty region. Key words: infrared sources - planetary nebula - protostar
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