Deep Sky Monitor From Curiosity to Cosmos.

Kaus Borealis

Also known as λ Sgr · HR 6913

Kaus Borealis is a high proper motion star in the constellation Sagittarius, about 84 light-years from Earth.

Kaus Borealis: a sky-survey photograph of its field
Sky survey view (DSS2 colour, or a backup survey)

Facts

TypeHigh proper motion star (spectral type K1IIIb)
ConstellationSagittarius
Position (J2000)18h 27m 58s, −25° 25′
Distance84 light-years (its light set off about 84 years ago)
Brightnessmagnitude 2.81 (smaller is brighter; the faintest stars the eye sees are about 6)
Studied in293 scientific papers (SIMBAD)

When and how to see it

Kaus Borealis is highest in the sky at midnight in June. From India (about 20° N) it climbs to about 45° above the horizon; from 50° N, to about 15°. To see it you need the naked eye, even from a town.

Heights are worked out for India and for 50° N. Set your location in Settings to see them for where you are.

For tonight's best time from your own town, the darkness and the Moon, open it on the map and see its "Tonight from your location" card.

More in Sagittarius

Everything in Sagittarius · All 88 constellations · All sky objects

Data: SIMBAD (CDS, Strasbourg; the site's weekly copy) · Data sources & credits