Tags: Star.
Beta Ophiuchi (β Oph β Ophiuchi) is a star in the equatorial constellation of Ophiuchus. It has the traditional names Celbalrai which comes from the Arabic كلب الراعي kalb al-rā‘ī meaning shepherd dog.[citation needed] It is also called Cheleb Kelb Alrai or sometimes just Alrai. The apparent visual magnitude of this star is 2.7 which is readily visible to the naked eye even from urban skies.
