B-type star · blue-white star

HR 8803

HR 8803 is a blue-white star in the constellation Cassiopeia 1,365 ly from Earth. Its surface is about 10,516 K, about 1.8 times the Sun's surface temperature, and it shines at 416× the Sun's brightness. At magnitude 6.4 it is within reach of 50 mm binoculars; the light you see left it 1,365 years ago.

1,365 lybrightness mag 6.41B2.5IV

Also catalogued as HD 218440 · HIP 114163

10,516 K
temperature
6.41
apparent magnitude
416× ☉
luminosity vs Sun
B2.5IV
spectral type
Distance & comparison with our Sun
1,365 years
at light speed from Earth
1.82×
as hot as the Sun
416×
the Sun's light output
-1.70
absolute magnitude
Explore from here · roam the neighborhood
HR 8803B-type
Sky regionCassiopeiathis direction
StarHR 880896 ly
StarHR 8707100 ly
StarHR 9063180 ly
StarCihstar
StarSchedarstar
Nearest stars
Bright stars in Cassiopeia
Can you see it tonight?
BINOCULARS NEEDED
Brightness mag 6.4To see it 50 mm binocularsLook toward Cassiopeia

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.