A-type star · white star

HD 19243

HD 19243 is a white star in the constellation Cassiopeia 2,589 ly from Earth. Its surface is about 7,931 K, about 1.4 times the Sun's surface temperature, and it shines at 1,416× the Sun's brightness. At magnitude 6.5 it is within reach of 50 mm binoculars; the light you see left it 2,589 years ago.

2,589 lybrightness mag 6.47B1V:e

Also catalogued as HIP 14626

7,931 K
temperature
6.47
apparent magnitude
1,416× ☉
luminosity vs Sun
B1V:e
spectral type
Distance & comparison with our Sun
2,589 years
at light speed from Earth
1.37×
as hot as the Sun
1,416×
the Sun's light output
-3.03
absolute magnitude
Explore from here · roam the neighborhood
HD 19243A-type
Sky regionCassiopeiathis direction
StarHR 1040210 ly
StarHR 861320 ly
StarHR 964370 ly
StarCihstar
StarSchedarstar
Nearest stars
Bright stars in Cassiopeia
Can you see it tonight?
BINOCULARS NEEDED
Brightness mag 6.5To 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.