Abstract
ABSTRACT Deep CCD narrow-band Hα imaging of the nearby dwarf irregular galaxy GR8 has revealed a total of 32 H II regions. Positions, Hα luminosities, and sizes of these objects are tabulated. The Hα luminosity function has the same shape as that for more luminous galaxies, except for size of sample effects. Most H II regions detected are at the very low luminosity end of the general luminosity function. The size distribution has an exponential shape, as for other galaxies, with a size scale of 17 pc. The varieties of different structures are discussed and compared to those in larger galaxies. Candidates for the exciting stars can be identified for some of the H II regions; they are very blue, with MB_ = -5 to -6.
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