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Regulus is a multiple star system consisting of two pairs of binary stars.

The apparent magnitudes are thus:-

Regulus A - 1.35
Regulus B - 8.14
Regulus C - 13.5
Regulus D - Has yet to be observed but believed to be a white dwarf, so it's AM will be very high

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15y ago
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6mo ago

The magnitude of Regulus, a star in the constellation Leo, is approximately 1.4, making it one of the brightest stars in the night sky.

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Q: What is the magnitude of Regulus?
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