A-type star · white star

42 Per

42 Per is a white star in the constellation Perseus 268 ly from Earth. Its surface is about 9,466 K, about 1.6 times the Sun's surface temperature, and it shines at 51.86× the Sun's brightness. At magnitude 5.1 it is bright enough to see with the naked eye; the light you see left it 268 years ago.

268 lybrightness mag 5.14A3V

Also catalogued as HR 1177 · HD 23848 · HIP 17886

9,466 K
temperature
5.14
apparent magnitude
51.86× ☉
luminosity vs Sun
A3V
spectral type
Distance & comparison with our Sun
268 years
at light speed from Earth
1.64×
as hot as the Sun
51.86×
the Sun's light output
0.56
absolute magnitude
Explore from here · roam the neighborhood
42 PerA-type
Sky regionPerseusthis direction
StarHR 113332 ly
StarHR 139039 ly
StarHD 2382247 ly
StarMirfakstar
StarZeta Perstar
Nearest stars
Bright stars in Perseus
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.1To see it no equipment neededLook toward Perseus

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.