A-type star · white star

HR 8243

1,510 lybrightness mag 5.53B1II

Also catalogued as HD 205139 · HIP 106227

9,008 K

temperature

5.53

apparent magnitude

1,146× ☉

luminosity vs Sun

B1II

spectral type

Distance & comparison with our Sun

1,510 years

at light speed from Earth

1.56×

as hot as the Sun

1,146×

the Sun's light output

-2.80

absolute magnitude

Explore from here · roam the neighborhood

HR 8243A-type

Sky regionCepheusthis direction

Nearest stars

HR 8357 →140 ly apart
HR 8490 →250 ly apart
HR 8226 →270 ly apart
HR 8259 →280 ly apart
HR 8384 →280 ly apart
HR 8242 →310 ly apart

Bright stars in Cepheus

Alderamin →mag 2.5
Errai →mag 3.2
Alfirk →mag 3.2
21Zet Cep →mag 3.4
3Eta Cep →mag 3.4
32Iot Cep →mag 3.5
27Del Cep →mag 4.1
23Eps Cep →mag 4.2

Can you see it tonight?

VISIBLE TO THE NAKED EYE

Brightness mag 5.5To see it no equipment neededLook 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.