B-type star · blue-white star

Kaus Australis

Kaus Australis is a blue-white star in the constellation Sagittarius 143 ly from Earth. Its surface is about 10,529 K, about 1.8 times the Sun's surface temperature, and it shines at 323× the Sun's brightness. At magnitude 1.8 it is bright enough to see with the naked eye; the light you see left it 143 years ago.

143 lybrightness mag 1.79B9.5III

Also catalogued as Epsilon Sgr · HR 6879 · HD 169022 · HIP 90185

10,529 K
temperature
1.79
apparent magnitude
323× ☉
luminosity vs Sun
B9.5III
spectral type
Distance & comparison with our Sun
143 years
at light speed from Earth
1.82×
as hot as the Sun
323×
the Sun's light output
-1.42
absolute magnitude
Explore from here · roam the neighborhood
Kaus AustralisB-type
Sky regionSagittariusthis direction
StarEta Sgr7.4 ly
StarKappa² CrA16 ly
StarPincoya20 ly
StarNunkistar
StarAscellastar
Nearest stars
Bright stars in Sagittarius
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 1.8To see it no equipment neededLook toward Sagittarius

Star data from the HYG database v4.2 (Astronexus, CC BY-SA 4.0). Temperature and colour computed by gravityfinder from the B-V colour index; the illustration is generated from that temperature, not a photograph.