B-type star · blue-white star

Acrab B

Acrab B is a blue-white star in the constellation Scorpius 398 ly from Earth. Its surface is about 10,435 K, about 1.8 times the Sun's surface temperature, and it shines at 142× the Sun's brightness. At magnitude 4.9 it is bright enough to see with the naked eye; the light you see left it 398 years ago.

398 lybrightness mag 4.90B2V

Also catalogued as Beta² Sco · HR 5985 · HD 144218 · HIP 78821

10,435 K
temperature
4.90
apparent magnitude
142× ☉
luminosity vs Sun
B2V
spectral type
Distance & comparison with our Sun
398 years
at light speed from Earth
1.81×
as hot as the Sun
142×
the Sun's light output
-0.53
absolute magnitude
Explore from here · roam the neighborhood
Acrab BB-type
Sky regionScorpiusthis direction
StarAcrab5.9 ly
StarHR 599833 ly
StarHR 590645 ly
StarShaulastar
StarSargasstar
Nearest stars
Bright stars in Scorpius
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 4.9To see it no equipment neededLook toward Scorpius

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.