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Regulus (aka the king star or literally from the Latin, “prince” or “little king”) is ≈ 3 ½ times the mass of the Sun and is the brightest star in the Leo Constellation. Because of its location in the “chest” of Leo, Regulus is often referred to as the “heart of the lion.” Even though Regulus it is about 75 ½ light years from the earth, it is still one of the brightest stars observable from Planet Earth.

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