Chi Ophiuchi
Star
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Chi Ophiuchi, Latinized from χ Ophiuchi, is a variable star in the equatorial constellation of Ophiuchus. It has a blue-white hue and is faintly visible to the naked eye with an apparent visual magnitude that fluctuates around 4.22. Wikipedia
Constellation: Ophiuchus
Temperature: 30,000±300 K
Magnitude: 3.02
Apparent magnitude (V): 3.02
Absolute magnitude (MV): −2.27
B−V color index: +0.28
Distance: 500 ± 10 ly; (153 ± 5 pc)