Scanner observations of comet P/Crommelin 18181

Abstract

Spectral sctns of the coma of comet P/CrommeIin 18181 have been obtained in the wavelength range M3200-6500 A. Strong emission features of CN(X3883 A) and CZ Swan bands (x4695, X5165, and X5538 A) have been identified. Some weak emission features of CHQ3890 A), Cs(X4050 A), CN(A4200 A), and C2 + CH(I4358 A) were also detected. Sodium was found to be absent in this comet.An estimate of CN and CZ abundances has been made and their production rate have been derived.