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Beta Ophiuchi

Beta Ophiuchi

Star
Beta Ophiuchi or β Ophiuchi, also named Cebalrai, is a star in the equatorial constellation of Ophiuchus. The apparent visual magnitude of this star is 2.7, which is readily visible to the naked eye even from urban skies. Wikipedia
Magnitude: 2.75
Surface temperature: 4,467 K
Radius: 5.369 million mi (12.42 R☉)
Luminosity: 63.4 L☉
Distance to Earth: 81.87 light years
Constellation: Ophiuchus
Mass: 2.247 × 10^30 kg (1.13 M☉)