Abstract

taken with the 60-inch Bosque Alegre reflector of the Cordoba Observatory between Julian dates 2438802 and 2438816. The plate dispersion is 42 Â/mm, and the photographed region extends from the ultraviolet to Hs. The notes describe mainly the behavior of the emission lines. If not stated otherwise, the emission lines are superimposed upon broad absorption lines. If the emission width W is given, it is expressed in km/sec and was measured on microphotometer tracings at the height of the interpolated continuous spectrum. In the descriptions, V and R refer respectively to the violet and red emission components. Spectral types were estimated by comparison with southern standards taken at the same dispersion.2 When emissions are noticeable only as weak components in Hs, the e suffix has not been added to the spectral type.

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