G-type star · yellow, like our Sun
Tau Per
Tau Per is a yellow dwarf much like our Sun in the constellation Perseus 254 ly from Earth. Its surface is about 5,411 K, about 0.9 times the Sun's surface temperature, and it shines at 142× the Sun's brightness. At magnitude 3.9 it is bright enough to see with the naked eye; the light you see left it 254 years ago.
Also catalogued as HR 854 · HD 17878 · HIP 13531
5,411 K
temperature
3.93
apparent magnitude
142× ☉
luminosity vs Sun
G4III...
spectral type
Distance & comparison with our Sun
254 years
at light speed from Earth
0.94×
as hot as the Sun
142×
the Sun's light output
-0.53
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.