Pegasus (constellation)

Pegasus
Constellation
Pegasus
AbbreviationPeg
GenitivePegasi
Pronunciation/ˈpɛɡəsəs/,
genitive /ˈpɛɡəs/
Symbolismthe Winged Horse
Right ascension21h 12.6m to 00h 14.6m [1]
Declination+2.33° to +36.61°[1]
QuadrantNQ4
Area1121 sq. deg. (7th)
Main stars9, 17
Bayer/Flamsteed
stars
88
Stars with planets12
Stars brighter than 3.00m5
Stars within 10.00 pc (32.62 ly)3
Brightest starε Peg (Enif) (2.38m)
Messier objects1
Meteor showersJuly Pegasids
Bordering
constellations
Andromeda
Lacerta
Cygnus
Vulpecula
Delphinus
Equuleus
Aquarius
Pisces
Visible at latitudes between +90° and −60°.
Best visible at 21:00 (9 p.m.) during the month of October.

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 is one of the 88 constellations recognised today.

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) form the large asterism known as the Square of Pegasus. Twelve star systems have been found to have exoplanets. 51 Pegasi was the first Sun-like star discovered to have an exoplanet companion.

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