Great conjunction - Wikipedia
https://en.wikipedia.org/wiki/Great_conjunctionA great conjunction is a conjunction of the planets Jupiter and Saturn, when the two planets appear closest together in the sky. Great conjunctions occur approximately every 20 years when Jupiter "overtakes" Saturn in its orbit. They are named "great" for being by far the rarest of the conjunctions … Näytä lisääGreat conjunctions attracted considerable attention in the past as omens. During the late Middle Ages and Renaissance they were a topic broached by the pre-scientific and transitional astronomer-astrologers of the period up to … Näytä lisääThe following table details great conjunctions in between 1200 and 2400. The dates are given for the conjunctions in right ascension (the dates for …• Positional astronomy Näytä lisääOn average, great conjunction seasons occur once every 19.859 Julian years (each of which is 365.25 days). This number can be calculated by the synodic period formula Näytä lisää7 BCWhen studying the great conjunction of 1603, Johannes Kepler thought that the Star of Bethlehem might … Näytä lisää• Orbital Motion Simulation of Jupiter and Saturn at GeoGebra• The December 21, 2020 Conjunction of Jupiter and Saturn• The exceptional conjunction of Jupiter and Saturn on December 21, 2020! Näytä lisää