618939 Frontispiece to \'Almagestum Novum\' by Giovanni Battista Riccioli, published in 1651 (engraving) by Italian School, (17th century); Private Collection; (add.info.: Giovanni Battista Riccioli (1598-1671) Italian astronomer. The image portrays Urania, the muse of astronomy, weighing up the rival systems of Copernicus, in which the earth moves round the sun, and Riccioli himself, in which the earth remains stationary at the centre of the universe. The older system of Ptolemy has already been discarded and lies on the ground alongside. ); Italian, out of copyright.