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Kelb Alrai

Cebalrai, Beta Ophiuchi, 60 Ophiuchi

Proper NamesKelb Alrai, Cebalrai
Bayer DesignationBeta Ophiuchi
Flamsteed Number60 Ophiuchi
HR (BSC)6603
HD161096
ConstellationOphiuchus
Right Ascension17h 43m 28s
Declination+4° 34' 2"
Distance82 light years
25 parsecs
MagnitudeApparent: +2.8
Absolute: +0.8
Spectral ClassK2 Orange Giant
Optimum VisibilityJune
NotesActually the fifth brightest star in Ophiuchus despite its 'Beta' designation, this orange giant is some fourteen times the Sun's diameter, but its outer shell is extremely tenuous in nature. There are indications that Kelb Alrai may possess at least one planet, though this remains to be confirmed.

Eighty-two light years from Earth, inward across the galactic disc of the Milky Way, lies the orange star Kelb Alrai.

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