Etymology

Alpheratz

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Today it means: A spectroscopic binary, visible as a second-magnitude blue-white star marking the head of the chained woman in the northern constellation of Andromeda (formerly seen as part of Pegasus), one of four stars in the asterism of the Great Square of Pegasus. Full definition →

Arabic سُرَّةُ الْفَرَس
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The story

  1. Arabic · derived fromسُرَّةُ الْفَرَس“the horse's navel”
  2. English todayAlpheratz

From Arabic سُرَّةُ الْفَرَس (surratu l-faras, “the horse's navel”) (referring to Pegasus), from سُرَّة (surra, “navel”) + فَرَس (faras, “horse, steed”). Not related to alpha.

Etymology from Wiktionary, CC BY-SA 4.0.