A-type star · white star

HR 7938

HR 7938 is a white star in the constellation Cepheus 618 ly from Earth. Its surface is about 9,720 K, about 1.7 times the Sun's surface temperature, and it shines at 106× the Sun's brightness. At magnitude 6.2 it is within reach of 50 mm binoculars; the light you see left it 618 years ago.

618 lybrightness mag 6.17A2IV

Also catalogued as HD 197734 · HIP 102216

9,720 K
temperature
6.17
apparent magnitude
106× ☉
luminosity vs Sun
A2IV
spectral type
Distance & comparison with our Sun
618 years
at light speed from Earth
1.68×
as hot as the Sun
106×
the Sun's light output
-0.22
absolute magnitude
Explore from here · roam the neighborhood
HR 7938A-type
Sky regionCepheusthis direction
StarHR 804926 ly
StarHR 782748 ly
StarHR 774253 ly
StarAlderaminstar
StarErraistar
Nearest stars
Bright stars in Cepheus
Can you see it tonight?
BINOCULARS NEEDED
Brightness mag 6.2To see it 50 mm binocularsLook toward Cepheus

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.