B-type star · blue-white star

HR 7739

HR 7739 is a blue-white star in the constellation Vulpecula 991 ly from Earth. Its surface is about 13,143 K, about 2.3 times the Sun's surface temperature, and it shines at 976× the Sun's brightness. At magnitude 4.8 it is bright enough to see with the naked eye; the light you see left it 991 years ago.

991 lybrightness mag 4.79B3V

Also catalogued as HD 192685 · HIP 99824

13,143 K
temperature
4.79
apparent magnitude
976× ☉
luminosity vs Sun
B3V
spectral type
Distance & comparison with our Sun
991 years
at light speed from Earth
2.28×
as hot as the Sun
976×
the Sun's light output
-2.62
absolute magnitude
Explore from here · roam the neighborhood
HR 7739B-type
Sky regionVulpeculathis direction
Star25 Vul34 ly
StarHR 7656110 ly
StarHD 190227130 ly
StarAnserstar
Star23 Vulstar
Nearest stars
Bright stars in Vulpecula
Can you see it tonight?
VISIBLE TO THE NAKED EYE
Brightness mag 4.8To see it no equipment neededLook toward Vulpecula

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.