B-type star · blue-white star

HR 7257

HR 7257 is a blue-white star in the constellation Corona Australis 1,450 ly from Earth. Its surface is about 11,247 K, about 1.9 times the Sun's surface temperature, and it shines at 779× the Sun's brightness. At magnitude 5.9 it is bright enough to see with the naked eye; the light you see left it 1,450 years ago.

1,450 lybrightness mag 5.86B5V

Also catalogued as HD 178322 · HIP 94157

11,247 K
temperature
5.86
apparent magnitude
779× ☉
luminosity vs Sun
B5V
spectral type
Distance & comparison with our Sun
1,450 years
at light speed from Earth
1.95×
as hot as the Sun
779×
the Sun's light output
-2.38
absolute magnitude
Explore from here · roam the neighborhood
HR 7257B-type
Sky regionCorona Australisthis direction
StarHR 7031190 ly
StarHR 7537250 ly
StarHR 7093260 ly
StarBeta CrAstar
StarMeridianastar
Nearest stars
Bright stars in Corona Australis
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 5.9To see it no equipment neededLook toward Corona Australis

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.