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Pegasus is a constellation in the northern sky, named after the winged horse Pegasus in Greek mythology. It was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and remains one of the 88 modern constellations. | Pegasus is a constellation in the northern sky, named after the winged horse Pegasus in Greek mythology. It was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and remains one of the 88 modern constellations. | ||
With an apparent magnitude varying between 2.37 and 2.45, the brightest star in Pegasus is the orange supergiant Epsilon Pegasi, also known as Enif, which marks the horse's muzzle. Alpha ([[Markab]]), Beta ([[Scheat]]), and Gamma(Algenib), together with Alpha Andromedae (Alpheratz or Sirrah) form the large asterism known as [[ | With an apparent magnitude varying between 2.37 and 2.45, the brightest star in Pegasus is the orange supergiant Epsilon Pegasi, also known as Enif, which marks the horse's muzzle. Alpha ([[Markab]]), Beta ([[Scheat]]), and Gamma(Algenib), together with Alpha Andromedae (Alpheratz or Sirrah) form the large asterism known as the [[Great Square of Pegasus]]. Twelve star systems have been found to have exoplanets. | ||
Covering 1121 square degrees, Pegasus ranks 7th of the 88 constellations in size. Pegasus is bordered by Andromeda to the north and east, [[Lacerta]] to the north,[[Cygnus]] to the northwest, [[Vulpecula]], [[Delphinus]] and [[Equuleus]] to the west, [[Aquarius]] to the south and [[Pisces]] to the south and east. | Covering 1121 square degrees, Pegasus ranks 7th of the 88 constellations in size. Pegasus is bordered by Andromeda to the north and east, [[Lacerta]] to the north,[[Cygnus]] to the northwest, [[Vulpecula]], [[Delphinus]] and [[Equuleus]] to the west, [[Aquarius]] to the south and [[Pisces]] to the south and east. |