A-type star · white star

31 Tau

31 Tau is a white star in the constellation Taurus 778 ly from Earth. Its surface is about 9,585 K, about 1.7 times the Sun's surface temperature, and it shines at 270× the Sun's brightness. At magnitude 5.7 it is bright enough to see with the naked eye; the light you see left it 778 years ago.

778 lybrightness mag 5.66B5V

Also catalogued as HR 1199 · HD 24263 · HIP 18089

9,585 K
temperature
5.66
apparent magnitude
270× ☉
luminosity vs Sun
B5V
spectral type
Distance & comparison with our Sun
778 years
at light speed from Earth
1.66×
as hot as the Sun
270×
the Sun's light output
-1.23
absolute magnitude
Explore from here · roam the neighborhood
31 TauA-type
Sky regionTaurusthis direction
StarHD 28086130 ly
StarHR 958130 ly
StarHR 1349130 ly
StarElnathstar
StarAlcyonestar
Nearest stars
Bright stars in Taurus
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.7To see it no equipment neededLook toward Taurus

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.