Abstract
AbstractThe principles of the work on the new catalogue of the optical HII-regions are described.On the basis of thirteen catalogues and lists of the optical HII-regions the catalogue of these objects had been compiled by me (Marsalkova, 1974). The main source of the objects on the northern sky was the catalogue of Sharpless (1959) which up to now is the only one in computer-readable form, the southern sky being characterized by a larger number of smaller catalogues represented in first place by that of Rodgers et al (1960) and that of Gum (1955). For this already published catalogue (now referred to as the “old” one) only optical data were taken into account. The catalogue was supplemented by a list of excluded HII-regions like supernova remnants, planetary nebulae and galaxies.
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