Stock Photo: Comet of 1546 (Halley). At this appearance the comet was excommunicated by Pope Calixtus III. From Lycosthenes Prodigioum ac ostentorum chronicon Basle 1557. Woodcut

Stock Photo: 1746-1511 Comet of 1546 (Halley). At this appearance the comet was excommunicated by Pope Calixtus III. From Lycosthenes Prodigioum ac ostentorum chronicon Basle 1557. Woodcut