B-type star · blue-white star
3 Cen
3 Cen is a blue-white star in the constellation Centaurus 344 ly from Earth. Its surface is about 12,409 K, about 2.1 times the Sun's surface temperature, and it shines at 181× the Sun's brightness. At magnitude 4.3 it is bright enough to see with the naked eye; the light you see left it 344 years ago.
Also catalogued as HR 5210 · HD 120709 · HIP 67669
12,409 K
temperature
4.32
apparent magnitude
181× ☉
luminosity vs Sun
B5
spectral type
Distance & comparison with our Sun
344 years
at light speed from Earth
2.15×
as hot as the Sun
181×
the Sun's light output
-0.79
absolute magnitude
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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.