BETA OPHIUCHI
'Beta Ophiuchi' (β Oph / β Ophiuchi) is a K-type giant star in the constellation Ophiuchus. It also has the traditional names 'Cebalrai' (Arabic: "shepherd dog"), 'Cheleb', or 'Kelb Alrai', or sometimes just 'Alrai'. Like some other K-type giants, β Ophiuchi has been found to vary very slightly (0.02 magnitudes) in brightness.,
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