Deneb’s variability has been known since the early 20th century. Cygnus constellation represents the Swan. With a great apparent brightness and because it can be observed for most of the year at northern latitudes, Deneb can be easily studied spectroscopically with small or moderate aperture telescopes. Designations: Deneb, α Cygni, 50 Cygni, Arided, Aridif, Gallina, Arrioph, HR 7924, BD +44°3541, HD197345, SAO 49941, FK5: 777, HIP 102098, Position of Deneb in Cygnus constellation. 0.05 – 0.18), Alnilam (Epsilon Orionis, mag. She later became famous as Helen of Troy. Also found in Orion is the red supergiant star called Betelgeuse. Deneb is a true supergiant, its diameter, calculated from its temperature and luminosity, is 108 times that of the Sun, half the size of Earth's orbit. Both these stars will come within 3° of the pole. This image splits the difference and shows Deneb with a radius 250 times that of the Sun. Being circumpolar to mid- and far northern latitudes, even at its lowest point, it appears just above the horizon, never setting below. Deneb, Alpha Cygni (α Cyg), is a class A supergiant located at an approximate distance of 1,550 light-years from Earth. Deneb, also called Alpha Cygni, is one of the most familiar stars in the night sky, as well as one of the most distant luminous stars that can be clearly viewed by the unaided eye, with an apparent magnitude of 1.25. Deneb is by far the most distant star of the Summer Triangle, but only the second in brightness, after Vega. This is most likely to happen because on the HR diagram, it is in the supergiant section, and it has a very large mass. Deneb or Alpha Cygni (Alp Cyg) is the brightest naked eye star in the constellation Cygnus.With an apparent magnitude of 1.25v, Deneb is the 19th brightest star in the entire sky (see: 50 Brightest Stars ).Its absolute magnitude is -8.73 and its distance is 3230 light years.The Equinox J2000 equatorial coordinates are RA = 20h 41m 25.9s, Dec = +45° 16' 49". After a few million years Deneb’s core will collapse producing a supernova. Deneb, Alpha Cygni, is the brightest star in Cygnus constellation and the most distant of all first magnitude stars. Antares / æ n ˈ t ɛər iː z /, designated α Scorpii (Latinised to Alpha Scorpii, abbreviated Alpha Sco, α Sco), is on average the fifteenth-brightest star in the night sky, and the brightest object in the constellation of Scorpius.Distinctly reddish when viewed with the naked eye, Antares is a slow irregular variable star that ranges in brightness from apparent magnitude +0.6 to +1.6. What people are saying. Deneb is also the brightest star of the Northern Cross, another prominent summer asterism found in the northern skies. A white supergiant star, Deneb is located in the constellation of Cygnus.. History and Cultural significance. It’s a blue-white supergiant. Rigel, the brightest star in the constellation Orion is a typical blue-white supergiant; Deneb is the brightest star in Cygnus, a white supergiant; Delta Cephei is the famous prototype Cepheid variable, a yellow supergiant; and Betelgeuse, Antares and UY Scuti are red supergiants. Radius: 203 ± 17 solar Deneb is a blue-white supergiant so when it dies it will explode like a supernova, then turn into a black hole. Deneb is a blue-white supergiant of the spectral type A2 Ia. The Chinese know Deneb as the Fourth Star of the Celestial Ford (天津四), referring to the Chinese asterism Celestial Ford (天津), formed by Deneb with Sadr (Gamma Cygni), Fawaris (Delta Cygni), 30 Cygni, Nu Cygni, Tau Cygni, Upsilon Cygni, Zeta Cygni and Aljanah (Epsilon Cygni). What is known about Deneb is that it’s a blue-white supergiant star that is furiously fusing its massive stocks of thermonuclear fuel and producing enough energy to make this star somewhere between 50,000 and 190,000 times brighter than our Sun if they were viewed at the same Some of the best known fictional uses of the star include Dan Simmons’ 1989 novel Hyperion, Anne McCaffrey’s “The Tower and the Hive” series, The Silver Surfer comic book series, the pilot episode of Star Trek: The Next Generation (“Encounter at Farpoint”) and the TV series Blake’s 7 and Babylon 5. Either way, its mass indicates that it will end its life in a supernova explosion within the next few million years. Deneb visual magnitude is 1.25, making it the 18th brightest star in the sky. With an average visual magnitude of 1.25, it is the brightest star in the constellation Cygnus and the 19th brightest star in the sky. The stars selected for navigation are some of the brightest and most recognizable stars in the sky. 2.90), Zeta Cygni (mag. It was discovered by O. J. Lee, an astronomer at Yerkes Observatory, University of Chicago, who published his findings in the Astrophysical Journal in 1910. Notable Alpha Cygni variables include Rigel (Beta Orionis, mag. Deneb, Alpha Cygni (α Cyg), is a class A supergiant located at an approximate distance of 1,550 light years from Earth. Deneb is very easy to find in the sky, even in less than ideal conditions. The fixed star Deneb Adige, Alpha Cygni, is a blue-white super-giant star in the Tail of the Swan, Cygnus Constellation.The most common name for this star is Deneb, which comes from the Arabic Dhanab, meaning Tail.There are various other named fixed stars which indicate the Tail of something, for example, Deneb Kaitos, the Tail of the Whale. The lovers’ meeting is celebrated at the annual Qixi Festival, traditionally held on the seventh day of the seventh month of the Chinese lunar calendar. Deneb is an average-sized world with a dense atmosphere tainted with the by-products of its extensive industrialization. Deneb is an extremely luminous supergiant A star, though its exact luminosity and evolutionary state are not known because of uncertainty in its distance. Backman, Stars and Galaxies 7th Edition, 2011] The double star Albireo lies at the opposite end of the pole of the cross and marks the Swan’s beak. See more. Thick slices of dragonfruit and rich red strawberries layered with lightly spiced thickened cream. Available on. Look it up now! It is a very distant star (approx. The name Deneb is derived from the Arabic Dhanab al-Dajājah, which means “the tail of the hen.” It was officially approved by the International Astronomical Union’s (IAU) Working Group on Star Names (WGSN) for Alpha Cygni on June 30, 2016. 4. Deneb is the prototype of a class of stars known as Alpha Cygni variables. Deneb is a white hot supergiant. What is known about Deneb is that it’s a blue-white supergiant star that is furiously fusing its massive stocks of thermonuclear fuel and producing enough energy to make this star somewhere between 50,000 and 190,000 times brighter than our Sun if they were viewed at the same distance! It will have a relatively short life and probably go out in a supernova explosion within the next few million years. With an average visual magnitude of 1.25, it is the brightest star in the constellation Cygnus and the 19th brightest star in the sky. 2.48), Fawaris (Delta Cyg, mag. Deneb, Alpha Cygni (α Cyg), is a class A supergiant located at an approximate distance of 1,550 light years from Earth. Deneb is classified as a white supergiant. Deneb is a bluish-white supergiant aroun… Cygnus also contains the red supergiant or hypergiant NML Cygni, one of the largest stars known. References This page was last changed on 18 April 2019, at 18:16. The North America Nebula (NGC 7000) and the Pelican Nebula (IC 5070) lie just to the east-northeast of Deneb. As a blue-white supergiant (A2Ia), Deneb is one of the biggest white stars known, and is 203 times bigger than the Sun, and around 19 times more massive. Deneb will be the Pole Star in the year 9800 AD. Deneb is a white supergiant. Because Deneb has used up it’s hydrogen supply and is now fusing heavier elements, it has left it’s main sequence phase and it currently a blue-white (very hot) supergiant and should be expanding into a red supergiant but it’s evolutionary future is currently unclear. It is 19 times more massive than the Sun and has expanded to a size of 203 solar radii. If it were placed at Vega‘s distance, it would be bright enough to cast shadows on Earth. Three other relatively bright stars have similar official names: Deneb Algedi (Delta Capricorni), Denebola (Beta Leonis) and Aldhanab (Gamma Gruis). Helen and Polydeuces were the immortal children of Zeus, and Clytemnestra and Castor were Tyndareus’ children and therefore mortal. The star α Cygni, `the Tail of the Swan'. 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