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.
References in periodicals archive ?
Its four stars are, clockwise from the northwest corner, Scheat, or Beta ([beta]) Pegasi; Markab, or Alpha ([alpha]) Pegasi; Algenib, or Gamma ([gamma]) Pegasi; and Alpheratz, or Alpha Andromedae.
5: Markab (Alpha or [Alpha] Pegasi), Scheat (Beta or [Beta] Pegasi), and Alpheratz, which is really Alpha Andromedae and connects the pattern of Pegasus to that of Andromeda.
These two constellations are linked by Alpha Andromedae, the northeast corner of the Great Square of Pegasus, the star also known as Alpheratz or Sirrah.