B-type star · blue-white star

HR 1019

HR 1019 is a blue-white star in the constellation Perseus 435 ly from Earth. Its surface is about 10,138 K, about 1.8 times the Sun's surface temperature, and it shines at 75.72× the Sun's brightness. At magnitude 5.8 it is bright enough to see with the naked eye; the light you see left it 435 years ago.

435 lybrightness mag 5.78A0V

Also catalogued as HD 20995 · HIP 15876

10,138 K
temperature
5.78
apparent magnitude
75.72× ☉
luminosity vs Sun
A0V
spectral type
Distance & comparison with our Sun
435 years
at light speed from Earth
1.76×
as hot as the Sun
75.72×
the Sun's light output
0.15
absolute magnitude
Explore from here · roam the neighborhood
HR 1019B-type
Sky regionPerseusthis direction
StarHR 97817 ly
StarHD 2330152 ly
StarHR 104153 ly
StarMirfakstar
StarZeta Perstar
Nearest stars
Bright stars in Perseus
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.8To 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.