![]() ![]() See also: Astrological aspect § Great conjunctions Very close conjunctions happen much less frequently (though the maximum of 1.3° is still close by inner planet standards): separations of less than 10 arcminutes have only happened four times since 1200, most recently in 2020. The spacing between the planets varies from conjunction to conjunction with most events being 0.5 to 1.3 degrees (30 to 78 arcminutes, or 1 to 2.5 times the width of a full moon). They are named "great" for being by far the rarest of the conjunctions between naked-eye planets (i.e. Great conjunctions occur approximately every 20 years when Jupiter "overtakes" Saturn in its orbit. The moons Io, Ganymede, Europa, and Titan are visible.Ī great conjunction is a conjunction of the planets Jupiter and Saturn, when the two planets appear closest together in the sky. Stacked photograph of the great conjunction of 2020 four hours before closest approach, with Jupiter 6–7 arcminutes below Saturn. Conjunction of the planets Jupiter and Saturn ![]()
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