B-type star · blue-white star

Alpheratz

97.0 lybrightness mag 2.07B9p

Also catalogued as 21Alp And · HR 15 · HD 358 · HIP 677

10,625 K

temperature

2.07

apparent magnitude

114× ☉

luminosity vs Sun

B9p

spectral type

Distance & comparison with our Sun

97 years

at light speed from Earth

1.84×

as hot as the Sun

114×

the Sun's light output

-0.30

absolute magnitude

Explore from here · roam the neighborhood

AlpheratzB-type

Sky regionAndromedathis direction

Nearest stars

HR 9074 →8.8 ly apart
31Del And →15 ly apart
HR 17 →16 ly apart
23 And →28 ly apart
HR 8792 →28 ly apart
64 Psc →31 ly apart

Bright stars in Andromeda

Mirach →mag 2.1
Almach →mag 2.1
31Del And →mag 3.3
Nembus →mag 3.6
Alfarasalkamil →mag 3.6
Udkadua →mag 3.8
37Mu And →mag 3.9
Shimu →mag 4.1

Can you see it tonight?

VISIBLE TO THE NAKED EYE

Brightness mag 2.1To see it no equipment neededLook toward Andromeda

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.