Kaus Borealis

Kaus Borealis (λ Sagittarii) is a orange supergiant star in the constellation Sagittarius. With an apparent magnitude of 2.81 it is the 133rd-brightest star in the night sky, and it is about 84 light-years from Earth.

Finder chart showing where Kaus Borealis is in the constellation Sagittarius
Kaus Borealis (circled) in Sagittarius, with the surrounding constellations and bright stars.
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Facts

ConstellationSagittarius
Designationλ Sagittarii (Lambda Sagittarii), HR 6913
Apparent magnitude2.81 (133rd brightest)
Spectral typeK1+IIIb
Colororange (B−V 1.04)
Distanceabout 84 light-years
Right ascension18 h 28.0 min
Declination−25.42°
Best monthAugust (at about 9 pm)

Sources: star positions, magnitudes and colors from the Yale Bright Star Catalogue; constellation boundaries and star names from the IAU; areas and distances from Wikidata; stick figures by M. van der Sluys. How the maps are made.

How to find Kaus Borealis

Kaus Borealis is in Sagittarius. From 40° N it is highest in the south in August evenings, about 25° above the horizon. From 35° S it reaches about 80° in the north. Nearby bright stars: Nunki (6° away), Kaus Australis (9° away) and Shaula (16° away).

Sagittarius constellation →

Other named stars in Sagittarius

Kaus AustralisNunkiAscellaKaus MediaAlbaldahAlnaslPolisRukbatArkab PriorArkab PosteriorTerebellumAinalrami

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