👉 The term "halleyan" is a term used in astronomy to refer to the moon. It is named after Tycho Brahe, who discovered and named the moons of the Sun (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune) as Halley's moons.
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What is the definition of Halley? 🙋
👉 Halley's Comet, a celestial body that orbits around the Sun, passing closest to Earth every 76 years.
