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9 Persei

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Magnitude  5.17
Constellation  Perseus
9 Persei
People also search for  11 Persei, 14 Persei, 17 Persei, 56 Persei

9 Persei is a pulsating variable star in the constellation Perseus. Its apparent magnitude is 5.17. Located around 1,000 parsecs (3,300 ly) distant, it is a blue supergiant of spectral type A2Ia, a massive star that has used up its core hydrogen and is now fusing heavier elements.

It has one companion, B, at separation 12.3" and magnitude 12.0.

References

9 Persei Wikipedia


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