superior conjunction
Quick Summary
In astronomy, a superior conjunction occurs when a planet aligns with the Sun, with the Sun positioned between the Earth and the planet. This alignment is specific to superior planets, which have orbits larger than Earth's. For inferior planets like Venus and Mercury, a superior conjunction happens when Earth and the planet are on opposite sides of the Sun, forming a nearly straight line. This is distinct from an inferior conjunction, where the planet passes between Earth and the Sun, potentially causing a transit across the Sun's face.123
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