No! Copernicus theory was a philosophical shift from the Ptolemaic one, in dethroning the earth as the center of the system to achieve a modest improvement in simplicity. However, since it retained the insistence on circular motions at constant velocity, and did not introduce any underlying causes for the way the system worked, it brought no improvement in the accuracy, or the ability to predict planetary positions. In addition, it assumed the burden of explaining all the psychological evidence that we are NOT careening through space, plus the lack of any measurable parallaxes to the stars. Thus, one might be tempted to call it a backwards step scientifically, although we all know that it was the seed for great progress.