description Zeta Persei Overview
Zeta Persei, written ζ Persei in astronomical notation, is a blue supergiant star in the constellation Perseus. It is associated with the young Perseus OB1 stellar association and is visible to the unaided eye from sufficiently dark skies; its high luminosity and massive-star evolution distinguish it from the older, lower-mass stars that make up much of the night sky, while its blue color reflects its hot surface and spectral classification.
help Zeta Persei FAQ
What kind of star is Zeta Persei?
Zeta Persei, written ζ Persei, is a blue supergiant in the constellation Perseus. Its high luminosity comes from a massive, hot star that is much more powerful than the Sun.
Can Zeta Persei be seen without a telescope?
Yes, Zeta Persei is visible to the unaided eye from sufficiently dark skies. City light pollution can make it difficult to see even though it is a bright star.
What stellar association is Zeta Persei part of?
Zeta Persei is associated with the young Perseus OB2 association, also called the Zeta Persei association. OB associations contain young, massive O- and B-type stars.
Does Zeta Persei have a companion star?
Zeta Persei has a faint ninth-magnitude companion separated by roughly 13 arcseconds. The bright blue supergiant remains the dominant object in the pair.
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