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Square of Pegasus

Great Square

GenitivePegasi (and Andromedae)
AbbreviationsPeg (and And)
Right Ascension23h04 to 00h09
Declination+15.3° to +29.2°
Area (sq deg)206
Brightest StarAlpheratz
Optimum VisibilityOctober
Map of the Square of Pegasus Map of the Square of Pegasus

An approximate square of conspicuous stars in the northern sky. Three of the corner-stars, Markab, Scheat and Algenib, belong to the constellation Pegasus. The fourth, Alpheratz, was lost to Pegasus when the constellation boundaries were formalised, and now lies just within the borders of Andromeda.

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