Abstract Centuries of both theologians and astronomers have wondered what the Star of Bethlehem (Matt 2:2, 9) actually was, from miracle to planetary conjunction. Here a history of this search is presented, along with the difficulties the various proposals have had. The natural theories of the Star are found to be a recent innovation, and now almost exclusively maintained by scientists rather than theologians. Current problems with various theories are recognized, as well as general problems with the approach. The interactions (...) between the sciences and religion are categorized and explored. (shrink)

In the 1480s Dominican humanist Filippo de’ Barbieri published an illustration of a supposedly ancient female seer called the ‘Sybilla Chimica’, whose prophetic text repeated the words of the ninth-century astrologer Abu Ma‘shar. In tracing the origins of Barbieri’s astrological Sibyl, this article examines three sometimes interlocking traditions: the attribution of an ante-diluvian history to the science of the stars, the assertion of astrology’s origins in divine revelation, and the belief in the ancient Sibyls’ predictions of the birth of Christ (...) and other Christian truths. Medieval authors from the twelfth century on began to cite these traditions together, thereby simultaneously authorizing the use of astrology to predict religious changes and blurring the categories of natural and supernatural as applied to human understanding. This blending of astrology and prophecy appears notably in works by such authors as John of Paris, John of Legnano, Johannes Lichtenberger, and Marsilio Ficino. Ultimately the trajectory that produced Barbieri’s astrological Sibyl would lead to a wave of astrological apocalyptic predictions in the sixteenth and seventeenth centuries, as well as to the harnessing of astrology for the defense of the faith in the form of an astrological natural theology, sacralizing science as well as nature. (shrink)

According to the doctrine of the Great Year, after a long period of time the same astral configurations reappear and the planets return to their original positions. The end of a world cycle is marked by a natural cataclysm, after which the world is restored to its original state and history repeats itself. This article deals with Albert the Great’s views on the Great Year, focussing on two of his early theological works (the De iv coaequaevis and the Sentences commentary). (...) The evidence here provided offers a comprehensive overview of the variety of contexts and themes which Albert considers to be related to the Great Year. He is fully aware of the many doctrinal implications of the concept of the Great Year. His analysis is deeply embedded in the astronomical discussions on the phenomenon of the precession of the equinoxes. A predominantly scientific approach is evident in the care with which he distinguishes the different types of Great Year. The major contribution of these works to the debate lies in the analysis of the impact of the Great Year on Christian eschatology and, more generally, in the investigation of the relationship between astrology and physics, on the one hand, and eschatology, on the other. (shrink)

The doctrine of great conjunctions, first theorized by the Arab astrologer Albumasar in the De magnis coniunctionibus, is a form of general astrology characterized...