B-type star · blue-white star
Alpha Ara
Alpha Ara is a blue-white star in the constellation Ara 267 ly from Earth. Its surface is about 12,216 K, about 2.1 times the Sun's surface temperature, and it shines at 428× the Sun's brightness. At magnitude 2.8 it is bright enough to see with the naked eye; the light you see left it 267 years ago.
Also catalogued as HR 6510 · HD 158427 · HIP 85792
12,216 K
temperature
2.84
apparent magnitude
428× ☉
luminosity vs Sun
B2Vne
spectral type
Distance & comparison with our Sun
267 years
at light speed from Earth
2.12×
as hot as the Sun
428×
the Sun's light output
-1.73
absolute magnitude
Explore from here · roam the neighborhood
Nearest stars
Can you see it tonight?
VISIBLE TO THE NAKED EYE
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.