Based on the spectral type (A2Ia) of the star, the star's colour is blue - white . The brightest star in Cygnus is Deneb, the 19th brightest star in the sky. Deneb shines bright in the constellation Cygnus. Deneb is a main star in the constellation Cygnus and makes up the constellation outline. The Deneb star Deneb is the brightest star in the constellation Cygnus. [1] Favorable for artistic and scientific pursuits which are carried out with the aim of gain. It is the 19th brightest star in the night sky, with an apparent magnitude of 1.25 Deneb is so bright, that it actually rivals Rigel as the most luminous first magnitude star. One of the truly great stars of our Galaxy, a class A (A2) supergiant, Deneb serves a three-fold role among the constellations.Its very name tells the first. Cygnus, (Latin: “Swan”) constellation in the northern sky at about 21 hours right ascension and 40° north in declination. It is a variable star (its apparent brightness varies) and is considered an Alpha Cygni-type star. Deneb is the prototype of a class of variable stars known as Alpha Cygni variables. Some of the most known are the 7 Pleiades, Rigel and Deneb. it is one of the vertices of the Summer Triangle and forms the 'head' of the Northern Cross. Deneb Algedi (Delta Capricorni) is a binary system in the zodiac constellation Capricornus which has a combined apparent magnitude of +2.81, making it the brightest star in the constellation. Its surface undergoes non-radial fluctuations, which cause its brightness and spectral type to change slightly. DENEB (Alpha Cygni). Deneb (/ ˈ d ɛ n ɛ b /) is a first-magnitude star in the constellation of Cygnus, the swan.Deneb is one of the vertices of the asterism known as the Summer Triangle and the "head" of the Northern Cross.It is the brightest star in Cygnus and the 19th brightest star in the night sky, with an average apparent magnitude of +1.25. Deneb is a blue-white supergiant star of spectral type A2 la. Luminosity of such a star is very powerful. Delta Capricorni (δ Capricorni, abbreviated Del Cap or δ Cap) is a multiple star system about 39 light-years away in the constellation of Capricornus (the Sea Goat).The primary star in the system is a white giant and the combined light of its members makes it the brightest star in the constellation.. Deneb is the 19th brightest star as seen from Terra, it is the 26th brightest star in the galaxy, and one of the brightest in Charted Space. Fixed star Deneb Adige is a Venus and Mercury type star (idealistic, psychic, handsome, neat, lovable, refined, genteel, intelligent) which gives an ingenious nature and a clever intellect that is quick at learning. Bob King Deneb is the 19th brightest star in the night sky and is the brightest star in Cygnus based on the Hipparcos 2007 apparent magnitude. For two stars, Rigel and Deneb, luminosity is shown below: Bolometric luminosity (entire spectra, including non-visible light): Sol - 1 Rigel - 120 000 Deneb - 200 000 Deneb is a bluish-white supergiant around 200 times the size of the Sun and burning through its fuel at a rapid rate. Since Deneb is very far away, its exact luminosity is hard to calculate but estimates suggest that it is between 55.000 to 196.000 times brighter than our sun. Deneb, on the other hand, is located at a distance of 3,550 light years from the solar system.It is the most distant first magnitude star, and its brightness is greatly diminished by the distance. Fixed Star Deneb Adige Astrology. All three vertices of the Summer Triangle are bluish-white stars, belonging to the spectral class A. Such is the case with Deneb, a 1st magnitude star and one of the most distant stars you can see without optical aid. 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