Magnitude 4.34 Apparent magnitude (V) 4.34 | Constellation Ophiuchus | |
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Sigma Ophiuchi (σ Oph) is a class K2III (orange giant) star in the constellation Ophiuchus. Its apparent magnitude is 4.31 and it is approximately 900 light years away based on parallax.
References
Sigma Ophiuchi Wikipedia(Text) CC BY-SA