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Zeta Ophiuchi

Much light of this big blue star is absorbed by interstellar dust, letting it shine in red from our point of view. Without this dust it would be one of the brightest stars in our sky.
The star hasn't reached the middle of its life yet and will stay on the main sequence for quite another while.

Constellation: Ophiuchus
Age: 4 million years
Distance: 458 light-years
Spectral class: O9
Visual magnitude: 2.58
Luminosity: 68 000 * Sun
Mass: 20 * Sun
Diameter: 8 * Sun

Back: List of big and giant stars

08/25/2007

    Zeta Ophiuchi
Photo: Spiegelteam, Volker Wendel and Bernd Flach-Wilken

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