B-type star · blue-white star

HR 3442

HR 3442 is a blue-white star in the constellation Vela 443 ly from Earth. Its surface is about 12,429 K, about 2.2 times the Sun's surface temperature, and it shines at 136× the Sun's brightness. At magnitude 5.2 it is bright enough to see with the naked eye; the light you see left it 443 years ago.

443 lybrightness mag 5.18B4IV

Also catalogued as HD 74146 · HIP 42504

12,429 K
temperature
5.18
apparent magnitude
136× ☉
luminosity vs Sun
B4IV
spectral type
Distance & comparison with our Sun
443 years
at light speed from Earth
2.15×
as hot as the Sun
136×
the Sun's light output
-0.48
absolute magnitude
Explore from here · roam the neighborhood
HR 3442B-type
Sky regionVelathis direction
StarHR 34403.9 ly
StarHR 341317 ly
StarHR 350322 ly
StarGamma² Velstar
StarAlsephinastar
Nearest stars
Bright stars in Vela
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.2To see it no equipment neededLook toward Vela

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.