THE SAN LUIS POTOSIECTRUM OF R CORONAE AUSTRALIS
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UNAM, Instituto de Astronomía, CD MEXICO, DF, MEX
Abstract
The spectrum of R CrA cannot be classified uniquely in the MK system. However, the K-line of Ca II and some hydrogen lines indicate a spectral type earlier than A7, perhaps A5. Shell characteristics, with extremely strong Ti II (specially ??3759-61) are o