description Pegasus Overview
Pegasus is a large constellation in the northern sky that was officially cataloged by the astronomer Ptolemy in the 2nd century. It represents the mythological winged horse from Greek mythology. The constellation is most recognizable by its prominent Great Square asterism, which is formed by four bright stars that outline the horse's body. These stars serve as useful reference points for locating neighboring constellations.
help Pegasus FAQ
How do I identify the Great Square of Pegasus?
Find four bright stars forming a large, nearly square outline in the autumn northern sky. One corner, Alpheratz, officially belongs to Andromeda even though it completes the Great Square.
When is Pegasus easiest to see?
Pegasus is most conspicuous on northern evenings during the autumn months. Its Great Square rises prominently as the brighter summer constellations move toward the western horizon.
Which galaxy can amateur astronomers find near Pegasus?
The Andromeda Galaxy, M31, can be located by using the Great Square and the stars of Andromeda as guides. Within Pegasus itself, observers can target the globular cluster M15 near the star Enif.
Why does one corner of the Great Square belong to Andromeda?
Alpheratz was historically shared by Pegasus and Andromeda, which is reflected in its older association with the horse's navel. Modern constellation boundaries assign Alpheratz exclusively to Andromeda.
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