<P> De revolutionibus orbium coelestium ( On the Revolutions of the Heavenly Spheres ) is the seminal work on the heliocentric theory of the Renaissance astronomer Nicolaus Copernicus ( 1473 -- 1543 ) . The book , first printed in 1543 in Nuremberg , Holy Roman Empire , offered an alternative model of the universe to Ptolemy 's geocentric system , which had been widely accepted since ancient times . </P>
<P> De revolutionibus orbium coelestium ( On the Revolutions of the Heavenly Spheres ) is the seminal work on the heliocentric theory of the Renaissance astronomer Nicolaus Copernicus ( 1473 -- 1543 ) . The book , first printed in 1543 in Nuremberg , Holy Roman Empire , offered an alternative model of the universe to Ptolemy 's geocentric system , which had been widely accepted since ancient times . </P>
when was on the revolutions of the heavenly spheres published
when was on the revolutions of the heavenly spheres published
1543
1543