A-type star · white star

HR 7940

brightness mag 6.34B2III

Also catalogued as HD 197770 · HIP 102258

7,578 K

temperature

6.34

apparent magnitude

25,351,286× ☉

luminosity vs Sun

B2III

spectral type

Distance & comparison with our Sun

–

at light speed from Earth

1.31×

as hot as the Sun

25,351,286×

the Sun's light output

-13.66

absolute magnitude

Explore from here · roam the neighborhood

HR 7940A-type

Sky regionCepheusthis direction

StarHR 811927,000 ly

StarHR 787631,000 ly

StarGarnet Star46,000 ly

StarAlderaminstar

StarErraistar

Nearest stars

HR 8119 →27,000 ly apart
HR 7876 →31,000 ly apart
Garnet Star →46,000 ly apart
9 Cep →48,000 ly apart
10Nu Cep →51,000 ly apart
13 Cep →56,000 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?

BINOCULARS NEEDED

Brightness mag 6.3To 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.