A-type star · white star

HR 20

344 lybrightness mag 6.01A7IV

Also catalogued as HD 431 · HIP 760

8,140 K

temperature

6.01

apparent magnitude

38.23× ☉

luminosity vs Sun

A7IV

spectral type

Distance & comparison with our Sun

344 years

at light speed from Earth

1.41×

as hot as the Sun

38.23×

the Sun's light output

0.89

absolute magnitude

Explore from here · roam the neighborhood

HR 20A-type

Sky regionCepheusthis direction

Nearest stars

HR 8748 →34 ly apart
HR 8972 →39 ly apart
HR 8702 →40 ly apart
HR 306 →46 ly apart
HR 8938 →46 ly apart
HR 8239 →47 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 6.0To 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.