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The authors present a sample of galaxies in six fields, each of area 2 sq deg, located in the North and South galactic polar caps. Photoelectrically calibrated photographic magnitudes and J-F colors have been determined for 512 galaxies brighter than completeness limits which range from F = 16.5 to F = 17.2 among the fields. Velocities, with typical accuracies of 150 km s-1, have been obtained for 280 of the brighter galaxies. Using these data and previously published work, the authors determine the general galaxy luminosity function parameters and the mean visual luminosity density of the universe.
Kirshner et al. (Thu,) studied this question.