Abstract
Photometric, spectroscopic, optical and neutral hydrogen observations of NGC 4546, a barred S0 galaxy possessing a disc of gas rotating in the opposite direction compared to the stellar disc, are presented. The relative circular velocities exceed 350 km/s. The stellar velocity dispersion and the width of the emission lines within the galaxy are analysed. Hα imaging reveals a bright condensation close to the centre of the galaxy, possibly a remnant of the centre of a small galaxy captured by NGC 4546. Dust lanes, pseudo spiral arms and faint objects similar to globular clusters are also revealed after a model for the light distribution of the disc and the bulge has been subtracted from the image.
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