A-type star · white star

HR 7993

HR 7993 is a white star in the constellation Cepheus 2,160 ly from Earth. Its surface is about 9,824 K, about 1.7 times the Sun's surface temperature, and it shines at 1,005× the Sun's brightness. At magnitude 6.5 it is within reach of 50 mm binoculars; the light you see left it 2,160 years ago.

2,160 lybrightness mag 6.45B0.5V

Also catalogued as HD 198781 · HIP 102771

9,824 K
temperature
6.45
apparent magnitude
1,005× ☉
luminosity vs Sun
B0.5V
spectral type
Distance & comparison with our Sun
2,160 years
at light speed from Earth
1.70×
as hot as the Sun
1,005×
the Sun's light output
-2.65
absolute magnitude
Explore from here · roam the neighborhood
HR 7993A-type
Sky regionCepheusthis direction
Star6 Cep210 ly
StarHR 8164330 ly
Star19 Cep330 ly
StarAlderaminstar
StarErraistar
Nearest stars
Bright stars in Cepheus
Can you see it tonight?
BINOCULARS NEEDED
Brightness mag 6.5To 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.