Alpheratz

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Related to Alpha Andromedae: Beta Andromedae, Gamma Andromedae

Alpheratz

(al-feer -ats) (Sirrah; α And) A bluish-white giant that is the brightest star in the constellation Andromeda. It is both a spectroscopic binary (period 96.7 days) and a spectrum variable. It originally lay in the constellation Pegasus, as Delta (δ) Pegasi, and is still considered part of the Great Square of Pegasus. mv : 2.07; spectral type: B9p III; distance: 31 pc.