The mass of these stars can be equal to that of the sun. The star is a pulsating Alpha Cygnus variable type which means that its size changes over time. Deneb - White, Hot Supergiant What's in a Name: Arabic for "tail" because it is located in the tail of the Cygnus, the Swan. Click on image for full size. However, the size of Deneb is estimated to be 108 times that of our star, so that if Deneb was at the center of our Solar System its diameter would extent to half as far as the orbit of the Earth. Deneb brightness ranges from a magnitude of 1.338 to a magnitude of 1.273 over its variable period. Deneb IV was the inhabited fourth planet orbiting the primary Deneb. In 9,800 years, Deneb will be our temporary pole star and within 7 degrees of the north celestial pole due to Earth’s precession. It is 19 times more massive than the Sun and has expanded to a size of 203 solar radii. Deneb is the brightest star in the Cygnus constellation and the 19th overall in the night sky. Deneb is estimated to have between 20 and 25 times the sun's mass, showing it to be a low density star which is expected for a supergiant. Variable Type of Deneb. Brown Dwarf. This was the homeworld of the Bandi, a telepathic humanoid species, and the Denebian slime devil. Deneb, (Arabic: “Tail” [of the Swan, Cygnus]) one of the brightest stars, with an apparent magnitude of 1.25. As a result of strong stellar winds, it … In 2364, Deneb IV was at the edge of "the great unexplored mass of the galaxy". The planet's internal heat generated an abundance of geothermal energy. This star, at about 1,500 light-years’ distance, is the most remote (and brightest intrinsically) of the 20 apparently brightest stars. With an estimated temperature of 8,525 K, it is 196,000 times more luminous than the Sun. White dwarfs are the smallest type stars, with a similar size to earth, and with extreme mass. Deneb’s Size and Age in Perspective: If our sun was the size of a marble, the diameter of Deneb would be equal to the size of a a prison cell. 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. Not officially a star and not officially a planet, but somewhere in between based the sizes of the stars. Betelgeuse (Alpha Orionis) is approximately 1,000 times larger than our Sun, whereas Deneb (Alpha Cygni) is estimated to be only 200-300 times the size of our Sun. It is one of the stars that form the Summer Triangle, along with Altair in Aquila constellation and Vega in Lyra.. Deneb is also the brightest star of the Northern Cross, another prominent summer asterism found in the northern skies. Star type Deneb is a blue-white supergiant of the spectral type A2 Ia. 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