A-type star · white star

Alderamin

49.0 lybrightness mag 2.45A7IV-V

Also catalogued as 5Alp Cep · HR 8162 · HD 203280 · HIP 105199 · Gliese Gl 826

7,747 K

temperature

2.45

apparent magnitude

20.63× ☉

luminosity vs Sun

A7IV-V

spectral type

Distance & comparison with our Sun

49 years

at light speed from Earth

1.34×

as hot as the Sun

20.63×

the Sun's light output

1.56

absolute magnitude

Explore from here · roam the neighborhood

AlderaminA-type

Sky regionCepheusthis direction

Nearest stars

3Eta Cep →4.1 ly apart
HR 7783 →11 ly apart
Errai →16 ly apart
HR 9038 →19 ly apart
Caph →19 ly apart
HR 6518 →20 ly apart

Bright stars in Cepheus

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
2The Cep →mag 4.2

Can you see it tonight?

VISIBLE TO THE NAKED EYE

Brightness mag 2.5To 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.