The two stars in the system have an orbital period of 21.7 days. The other members of the quintet reside 290 million light-years away in the constellation Pegasus. The Great Square of Pegasus asterism is used by astronomers as a guide towards finding famous deep-sky objects, such as the Andromeda Galaxy. Pegasus is a seasonal constellation that is best seen in the autumn months in the northern hemisphere. When Perseus severed Medusa's head, drops of blood fell into the sea. The ring structure in NGC 7742 may be the result of a merger with a small, gas-rich dwarf galaxy, and the extremely bright central region and some of the gas rotating in the opposite direction are some of the features that suggest this may have been the case. The name Pegasus is derived from the Greek pegai which means “springs” or “waters,” and Chrysaor’s name means “the golden sword.”. To the observers on earth, the winged horse appears to be flying upside down. He did not expect the hero to come back from his mission alive. Pegasus was later brought to Mount Helicon by Bellerophon and with one kick of his hoof, he caused the spring of Hippocrene to flow. The manner of the horse’s birth was unusual, to say the least. Pegasus constellation lies in the northern hemisphere. 51 Pegasi is only 11% more massive than our Sun, and its radius is only 23% greater than our Sun’s. The Nine Planets has been online since 1994 and was one of the first multimedia websites that appeared on the World Wide Web. It was the first deep sky object to be entered in the New General Catalogue (NGC). It has an apparent magnitude of 12.35. It has a visual magnitude of 13.65 and is approximately 206 million light years distant. Mu Pegasi is a yellow giant star of the spectral type G8 III. It was a fool’s errand, as the king hoped Perseus would die, since he wished to enslave Perseus’s mother. The brightest star in Pegasus is Enif / Epsilon Pegasi, which has an apparent magnitude of 2.399. The constellation was named after Pegasus, the winged horse in Greek mythology. The other stars that form the Great Square of Pegasus are Markab (Alpha Pegasi), Scheat (Beta Pegasi), and Algenib (Gamma Pegasi). According to the listed constellation currently, the constellation of Pegasus is the 7th largest constellation in the northern sky. The brightest star in the constellation is Enif, also known as Epsilon Pegasi – an orange giant, 672 light-years away from the Earth. Pegasus (Greek Pegasos) is the winged white horse, son of Poseidon in the shape of a horse.At birth Pegasus sprang forth from the bloody neck of the Gorgon Medusa when she was beheaded by the hero Perseus.A spring was created when Pegasus' hooves struck the earth on Mount Helicon, the fabled spring of Hippocrene, at the behest of Poseidon to prevent the mountain swelling too much. Stephan’s Quintet is a group of five galaxies, NGC 7317-7320, first discovered by the French astronomer Édouard Stephan at Marseilles Observatory in 1877. The white sea foam gave the horse his brilliant color. It has an apparent magnitude of +3.52. Enif is quite a young star, having an estimated age of around 20 million years. Mythological Bestiary: Pegasus, the winged horse of Greek MythologyThe story of the birth of PegasusVoice: Bret Brown The star, HD 209458, is only 14% more massive, and 20% bigger than our Sun. NGC 7318, designated as UGC 12099 / UGC 12100, are a pair of colliding galaxies located at around 300 million light-years away from us. Alkarab is located within the Great Square of Pegasus asterism, and it is moving at a speed of 50.6 km / 31.4 mi per second through the Galaxy. Salm has around 214% of our Sun’s mass, 280% of its radius, and it is 32 times brighter. NGC 7725 and NGC 7753 are a pair of galaxies in Pegasus. Messier 15 is a globular cluster, about 18 arc minutes in size. The constellation of Pegasus is the 7th largest constellation in the sky. The galaxy appears to be around 140,000 light-years in diameter. It has a radius almost five times that of the Sun. Bellerophon then rode Pegasus into the sky, and swooped down on the Chimaera, killing the monster with his arrows and lance. It is named after the winged horse Pegasus, from Greek mythology, and it is one of the oldest Greek constellations. Medusa was a beautiful young woman before she was turned into a monster by the goddess Athena after being caught being defiled by the sea god Poseidon in the goddess’ temple. There is one meteor shower associated with Pegasus; the July Pegasids. When the primary star will evolve into a red giant, it is expected to grow to a point where the secondary star can accrete matter from the expanded gaseous envelope. It has a visual magnitude of 6.078. It was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and is one of the 88 constellations recognised today. Pegasus is one of the 48 constellations listed by the Greek astronomer Ptolemy in the second century. There are several interesting binaries here, a curious flare star, and one outstanding deep sky object. The resulting stream which flowed from the spot he had pawed became sacred to the Muses. It has an apparent magnitude of 13.2. Most of the quintet is too far away even for Hubble to resolve individual stars. NGC 7320 is 40 million light-years from Earth. There is a famous asterism in Pegasus, which is named the Great Square of Pegasus. Athena turned Medusa into a monster, that had snakes instead of hair, and her face was so abhorring that anyone who gazed at her, would turn into stone. It has the stellar classification M2.3 II-III, which means that it is a red star halfway between the subgiant and giant stage. The discovery shook the assumption that a ‘high redshift’ in a quasar’s light spectrum meant that the quasar was one of the fastest receding objects in the universe, which in turn meant that it was billions of light years distant from Earth. The Great Square of Pegasus and its stars can be used to find several interesting and famous deep-sky objects. It is a subgiant star that has around 890% of our Sun’s mass, 480% of its radius, and it is 5,840 times brighter than our Sun. He didn’t succeed. They mixed with sea foam, and Pegasus was born. In the 17th century, Johann Bayer gave the star a dual designation, Alpha Andromedae and Delta Pegasi. This star is only 448 million years old. After this and several other heroic deeds for King Iobates, Bellerophon let the successes get to his head. NGC 23 is a spiral galaxy located at around 173.5 million light-years away from us. The constellation is known for the Great Square of Pegasus, a familiar asterism in the northern sky, as well as for a number of bright stars and deep sky objects, among them Messier 15 (NGC 7078, Cumulo de Pegaso), Stephan’s Quintet of galaxies, the Einstein Cross (a gravitationally lensed quasar), and the unbarred spiral galaxy NGC 7742. Pegasus is the seventh largest constellation in the sky, occupying an area of 1121 square degrees. The star system is composed out of a subdwarf star, and a red giant star. It has an apparent magnitude of 11.0, and it is a gas-poor system. Then he swooped down on the Chimaera from the sky and killed the monster with his lance and arrows. The name we use today comes from ancient Greek myths about a flying steed with mystical powers. This means that it is an orange supergiant. It has a visual magnitude of 2.399 and is approximately 690 light years distant from the Sun. NGC 7753 is a barred spiral galaxy and NGC 7753 is its satellite galaxy, a barred lenticular galaxy that appears to be attached to one of NGC 7753’s arms. NGC 7331 is the brightest galaxy in the NGC 7331 Group, sometimes also called the Deer Lick Group. Their apparent magnitudes are 14.4 and 13.9 respectively. The camera’s infrared vision also peers through curtains of dust to see groupings of stars that cannot be seen in visible light. This star loses mass quite fast, and as a result, it is enveloped by an expanding shell of gas and dust. NGC 7319 is a spiral galaxy approximately 360 million light years distant. The constellation, one of the largest in the sky, contains three of the bright stars that make up the asterism of the Great Square. The radiant of the Pegasids appears to come from around 5 degrees west of the star Markab / Alpha Pegasi. Psi has an apparent magnitude of 4.66. HR 8799 is a young main-sequence star located at around 129 light-years away from us. it is classified as a type E4 elliptical galaxy. He fell off the horse and back to Earth. In this galaxy, Hubble can resolve individual stars, evidence that NGC 7320 is closer to Earth. Pi1 Pegasi has an apparent magnitude of +5.58. It has an apparent magnitude of 3.514. Pegasus is the seventh largest constellation, taking up nearly 1,200 square degrees of space in the night sky, and can be seen by observers located between +90° and -60° of latitude. This star is more than twice as hot as our Sun, having temperatures of around 11,190 K, and it is also a fast-spinning star, with a rotational velocity between 140 – 210 km / 86.9 – 130 mi per second. Mythology of the constellation Pegasus. Pegasus was the winged-horse that sprang from the blood of Medusa when Perseus cut her head off. Cumulo de Pegaso – Messier 15 (M15, NGC 7078). The Babylonian constellation is known as IKU – which means “field” – had four stars of which three were later part of the Greek constellation Hippos – Pegasus. Pegasus’s location in the northern hemisphere means that the whole constellation is visible to observers north of 53o S, and it is best viewed during the month of October. The traditional name, Scheat, comes from the Arabic Al Sā’id, which means “the upper arm.”. The Myth Behind the Constelltion Pegasus. The star is 36% more luminous, it has similar temperatures, but it is older than our Sun, with an estimated age of around 6.1 billion years. Pegasus is a constellation in the northern sky, named after the winged horse Pegasus in Greek mythology. Asterisms are groups of stars that form simple patterns but are part of one or more constellations. Pegasus did however make it to Olympus. NGC 7673, image: Hubble Space Telescope, NASA, ESA. It is one of the largest constellations in the sky. The stars are generally second and third magnitude. Hippocrene was one such spring, and it was blessed, so much so, that those who drank from its water, were given the ability to write poetry. The Great Square of Pegasus makes up the eastern (left) half of the constellation Pegasus. Athena turned Medusa’s hair into snakes and made her face so ugly that anyone who looked at her immediately turned to stone. It is 77% more luminous, while its temperatures are similar to that of our Sun. NGC 7331 is a spiral galaxy with a visual magnitude of 10.4, about 40 million light years distant. After this huge success and other heroic deeds performed for King Iobates, Bellerophon began to believe he was entiltled to join the gods on Mount Olympus. Algenib is almost nine times as massive as the Sun and has about five times the solar radius. Encircling the galaxies are young, bright blue star clusters and pinkish clouds of glowing hydrogen where infant stars are being born. https://i.pinimg.com/originals/17/6f/27/176f27871b6ecca6ffff9b1251261ca6.jpg, https://starregistration.net/media/wysiwyg/Constellations/Pegasus.png, https://upload.wikimedia.org/wikipedia/commons/4/43/Sidney_Hall_-_Urania%27s_Mirror_-_Pegasus_and_Equuleus_%28best_currently_available_version_-_2014%29.jpg, https://in-the-sky.org/images/constellations/con_PEG_000.png, https://www.thoughtco.com/thmb/Qk8CAA3CVF43JefSCjga1fNiMzo=/1418×788/filters:no_upscale():max_bytes(150000):strip_icc()/pisces_andromeda_pegasus_constellations-5b8db1ea46e0fb0050ee1cad.jpg, https://upload.wikimedia.org/wikipedia/commons/thumb/8/8b/New_Hubble_image_of_star_cluster_Messier_15.jpg/715px-New_Hubble_image_of_star_cluster_Messier_15.jpg, https://www.thoughtco.com/thmb/mbzJSeE6OAFsY7C6Xav9ucBE9Ws=/1100×646/filters:no_upscale():max_bytes(150000):strip_icc()/findingm15-56b726423df78c0b135e0a5d.jpg, https://earthsky.org/upl/2017/09/great-square-star-names-astrobob-e1511187972965.jpg, http://www.whitby-astronomers.com/sites/whitby-astronomers.com/files/images/in_focus/square_andromeda/pegasus_andromeda.jpg, https://www.star-facts.com/wp-content/uploads/2020/04/Enif-1171×620.jpg?189db0&189db0, https://www.star-facts.com/wp-content/uploads/2020/04/Pegasus-stars.jpg?189db0&189db0, https://www.star-facts.com/wp-content/uploads/2020/04/Scheat.jpg?189db0&189db0, https://home.moltenaether.com/wiki/images/thumb/1/17/Markab-star.jpg/300px-Markab-star.jpg, https://www.star-facts.com/wp-content/uploads/2020/04/Algenib-1240×620.jpg?189db0&189db0, https://1.bp.blogspot.com/-SR9PNiLCZzw/Vcckd0n_zbI/AAAAAAAAAos/5ShroWv6zPA/s1600/Astronomy%2BScience%2B-%2BWheel%2BGalaxy.jpg, https://userscontent2.emaze.com/images/42ed34bb-8356-4918-a67f-2c049d8362ac/57f0cd7e-672a-45f6-884c-a7fee1620d5a.jpg, https://www.viewfromascope.com/wp-content/uploads/2012/11/Pegasus_Imaged.jpg, https://www.constellationsofwords.com/images/stars/Sadalbari.JPG, https://theskylive.com/sky/stars/finder-charts/salm-tau-pegasi-finder-chart.png?c=1586870014, https://theskylive.com/sky/stars/star-images/89/8905_800.jpg, https://upload.wikimedia.org/wikipedia/commons/thumb/5/5d/Size_IK_Peg.png/320px-Size_IK_Peg.png, https://lh3.googleusercontent.com/proxy/GyB95nWiU6U3Nlpf6_MWQC4nTqWCvhcjRQDPrPmouEPHsu6Qa0zfaD0epW8Y0gxzsl0S9JPLRsR7BhsqiGnZ-5oascMkljZQ, https://earthsky.org/upl/2013/10/51_pegasi_-Seth-Shostak-SPL.jpg, https://www.nasa.gov/centers/goddard/images/content/207358main_whitedwarf_20080102_HI1.jpg, https://econintersect.com/images/2013/3/380_8196313Screenshot-4_01_32PM3_17_2013001.png, https://www.universetoday.com/wp-content/uploads/2017/01/hr8799.jpg, https://exoplanets.nasa.gov/system/resources/detail_files/231_heic0303a%28S%29.jpg, https://upload.wikimedia.org/wikipedia/commons/thumb/8/89/Pi_Pegasi.jpg/1200px-Pi_Pegasi.jpg, https://www.sciencecenter.net/whatsup/11/peg-and.jpg, https://upload.wikimedia.org/wikipedia/commons/thumb/2/21/NGC_7331_-_Peris.jpg/1200px-NGC_7331_-_Peris.jpg, https://upload.wikimedia.org/wikipedia/commons/e/ee/Seyfert_Galaxy_NGC_7742.jpg, https://upload.wikimedia.org/wikipedia/commons/c/c8/Einstein_cross.jpg, https://sep.yimg.com/ay/skyimage/stephan-s-quintet-9.jpg, https://lh3.googleusercontent.com/proxy/AB86y1K5ar-uq-dJiPnD8jeOwxGOAtprAVU9rjpRTaSEFaHYPsFd1fF8tOwdToNTrrU8MbmwCHaZ-wOwfEW_l2P64EhEnwYq2woqgiBtok5dcU_84EoPL3SBlbNu, https://upload.wikimedia.org/wikipedia/commons/a/a7/NGC_7318.jpg, https://upload.wikimedia.org/wikipedia/commons/c/c8/NGC_7319.jpg, https://upload.wikimedia.org/wikipedia/commons/2/2e/NGC7315_-_SDSS_DR14.jpg, https://upload.wikimedia.org/wikipedia/commons/thumb/1/17/NGC_7217_Hubble.jpg/768px-NGC_7217_Hubble.jpg, https://upload.wikimedia.org/wikipedia/commons/1/18/NGC_7673.jpg, https://upload.wikimedia.org/wikipedia/commons/thumb/c/c4/NGC_0023_SDSS.jpg/581px-NGC_0023_SDSS.jpg, https://upload.wikimedia.org/wikipedia/commons/thumb/2/28/NGC_7814_Hubble_WikiSky.jpg/1200px-NGC_7814_Hubble_WikiSky.jpg, https://lh3.googleusercontent.com/proxy/KOUWZRMl_3h80vuPshBOs77HNscgjnh4NzCv1BFt8DHbRGQGRqlZ27onX35L6C1_xb5ZnMKCaDeZU5HSiJQUob9YdD70qvRZ6QRN1RzeNm8UKJ3G2WNnhyeHvLdLOJAa1Tv39awQTB_9aQvoYXbPXfQXL2yrTFs, https://upload.wikimedia.org/wikipedia/commons/f/f7/NGC1.png, https://upload.wikimedia.org/wikipedia/commons/e/e1/N7753s_cropped.jpg, https://www.imo.net/wp-content/uploads/2020/07/IMO_cover_w29.jpg, https://www.greeklegendsandmyths.com/uploads/5/3/1/3/53133595/published/pegathen.jpg?1493652092, https://steemitimages.com/p/cyxkEVqiiLy5d6b9uFRpP89aHFL6c9KG697p3ZPAsEnWxmwUyKhCwLh1ZjAQUFB4euxzPSwdFQXdu7e9pw2iC6kAUqcqRBYzZLGfpVtraEPfjc1NAaqrYYYdyi9gtdp2ERM?format=match&mode=fit&width=640, https://steemitimages.com/p/EfcLDDAkyqgs3ReRiBH6BEmiqqtZi2CX7CpDKuGmpNebJpZ6JFnGZ15raBmpD91bMtguKcAo1Sn1ZtGgGCWNePfpqvyFt?format=match&mode=fit&width=640. 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