Magnitude 4.97 | ||
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40 Persei is a class B0.5V (blue main-sequence) star in the constellation Perseus. Its apparent magnitude is 4.97 and it is approximately 1060 light years away based on parallax.
It is a binary star, with component B having magnitude 10.04, separation 19.8", and type A1Vn.
References
40 Persei Wikipedia(Text) CC BY-SA