Abstract
Absolute spectral energy distributions were measured photo-electrically from 3600 Å to 8600 Å with a resolution of 10 Å for 62 bright southern and equatorial stars of intermediate and late spectral types of all luminosity classes in order to provide flux calibration and a grid of secondary spectrophotometric standards for the MK system. Most of the stars are MK standards, several are slightly peculiar (CN, Ba). The results are used to compare measured with theoretical energy distributions. Quantitative classification criteria are derived from measured line and band strengths. At the resolution of our measurements, mildly peculiar stars cannot be easily distinguished from normal stars.
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