The southern Seyfert galaxies NGC 1566 and NGC 3783.

High-resolution spectrophotometry, photometry, and photographs are presented for the bright southern hemisphere Seyfert galaxies NGC 1566 and NGC 3783. NGC 1566 is found to have a very faint emission-line luminosity for a Seyfert, the absolute Ha luminosity being 11 x 10 ergs 1; the Balmer-line profiles are as broad as those in much brighter objects but are peculiar because the Ha and Hfl profiles appear to be different. NEiC 3783 is a well-defined barred spiral with nearly circular spiral arms and has a nucleus resembling in all respects the bright Seyfert galaxies except that the Balmer-line wings are asymmetrical. Subject headings: galaxies, individual - galaxies, photometry of - Seyfert galaxies - galactic nuclei