The catalog contains 323 emission-line stars of the Orion population that have been observed with slit spectrographs. Accurate positions are given for most objects, together with UBV data where available, spectral classification, emission-line intensity class, type of star, light range and classification of the light curve, nebula with which the star is associated, and remark or indication when the star is nebulous or double. The catalog is based upon all published information available to mid-1971, together with unpublished Lick data.
CITATION STYLE
Herbig, G. H., & Kameswara Rao, N. (1972). Second Catalog of Emission-Line Stars of the Orion Population. The Astrophysical Journal, 174, 401. https://doi.org/10.1086/151500
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