The Systems of the World in 1651 According to Father Riccioli (Reduced facsimile of the frontispiece in Riccioli: Almagestum Novum. Bologna, 1651.) [Enlarge] Explanation "Astrea, goddess of the heaven, wearing angel's wings and gleaming everywhere with stars, stands at the right; on the left is Argus of the hundred eyes, not tense, but indicating by the position of the telescope at his knee rather than at the eyes in his head, that while observing the work of God's hand, he appears at the same time to be worshipping as in genuflexion." (Riccioli: Alm. Nov., Præfatio, xvii). .