The ‘Great’ Conjunction of Jupiter and Saturn | NASA
www.nasa.gov › feature › the-great-conjunction-ofDec 15, 2020 · The ‘Great’ Conjunction of Jupiter and Saturn Saturn, top, and Jupiter, below, are seen after sunset from Shenandoah National Park, Sunday, Dec. 13, 2020, in Luray, Virginia.
Great conjunction - Wikipedia
https://en.wikipedia.org/wiki/Great_conjunctionOn 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 in which J and S are the orbital periods of Jupiter (4332.59 days) and Saturn (10759.22 days), respectively. This is about 52 days less than 20 years, but i…