2.06
Apparent Mag97
Distance (ly)B8IVp
Spectral Type13,800
Temperature (K)Alpheratz is the brightest star in Andromeda and marks one corner of the Great Square of Pegasus. It is a chemically peculiar star with enhanced mercury and manganese.
Stellar Data
Apparent Magnitude2.06
Absolute Magnitude-0.3
Distance97 light-years
Spectral TypeB8IVp
Temperature13,800 K
Luminosity200 L☉
Radius2.7 R☉
Mass3.8 M☉
Right Ascension00h 08m 23.3s
Declination+29° 05′ 25.6″
ConstellationAndromeda
Notable Facts
- Alpheratz was historically shared between Andromeda and Pegasus
- It is a mercury-manganese star with unusual atmospheric chemistry
- It forms the northeastern corner of the Great Square of Pegasus