Magnitude 4.82 | Constellation Ophiuchus | |
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30 Ophiuchi is a class K4III (orange giant) star in the constellation Ophiuchus. Its apparent magnitude is 4.82 and it is approximately 405 light years away based on parallax.
The primary has two reported companions: B, at magnitude 9.71 and separation 99.8", and C, at magnitude 8.75 and separation 220.9".
References
30 Ophiuchi Wikipedia(Text) CC BY-SA