Pegasus Constellation Facts
The area highlighted in yellow is the asterism known as "The Square of Pegasus".
- Pegasus is a large constellation and easily identifiable due to its bright asterism known as "The Square of Pegasus".
- Asterisms are groups of stars that form simple patterns but are part of one or more constellations.
- Pegasus is visible in both the Northern and Southern hemispheres.
- In the Northern hemisphere Pegasus can be seen from July to January.
- In the Southern hemisphere the constellation can be viewed from August to December.
- In the Southern hemisphere Pegasus will appear upside down.
- In 1995 the first exoplanet known to orbit a sun like star was discovered in the constellation of Pegasus.
- The constellation contains the first planets outside our solar system to have been directly observed by an Earth based telescope.
- The nearest star to Earth which could possibly explode as a supernova is located in the Pegasus constellation.
- Pegasus has been recognized as a constellation for 2,000 years.
Pegasus is a white winged stallion from Greek mythology.
Main Stars in the Pegasus Constellation
The number next to each star is its apparent magnitude, its brightness from our point of view on Earth, the lower the number the brighter the star in the night sky.
Confusingly Alpheratz is actually officially part of the Andromeda constellation but is considered a connecting star as it makes up part of the "Square of Pegasus" asterism. Alpheratz is the brightest star in Andromeda and also the brightest in Pegasus if you consider it part of the constellation. Scheat
Also known as Beta Pegasi, Scheat is a red giant around 200 light years from Earth, it is almost 100 times larger in diameter than our sun with twice its mass. Matar
Also known as Eta Pegasi, Matar is a binary star system around 170 light years from Earth, the primary star is a yellow giant 250 times brighter than our sun. Algenib
Also known as Gamma Pegasi, Algenib is a blue sub giant emitting 6,000 times the energy of our sun. Markab
Also known as Alpha Pegasi, Markab is a blue giant with twice the surface temperatures of the sun. Homam
Also known as Zeta Pegasi, Homam is a blue main sequence star around 200 light years from Earth. Enif
Also known as Epsilon Pegasi, Enif is officially the brightest star in the constellation of Pegasus, it is an orange super-giant star nearing the end of its lifespan and could possibly explode as a supernova over the next few million years, the star is almost 200 times larger in diameter than the sun and is located 690 light years from Earth.
Finding Pegasus - Northern Hemisphere
Finding Pegasus - Southern Hemisphere