Observations de la Nova Recurrente R S Oph. (Observations on the Nova Recurrent R S Oph.)
OBSERVATOIRE DE PARIS (FRANCE)
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On July 13, 1958, a new outburst of the recurrent nova RS Ophiuchi was discovered. This was the third outburst known, the previous ones occurring in 1898 and 1933. The spectrum of the nova was observed at the Mount Wilson and Palomar Observatories in a wide spectral range, Lambda 3800 to Lambda 8500. The report compiles a list of lines observed as a function of time in the spectrum and determines accurately the wavelengths of the lines, with the aid of the comparison spectrum.