Deneb is the most distant bright star in Earth's sky, lying thousands of light-years away from Earth. With an estimated temperature of 8,525 K, it is 196,000 times more luminous than the Sun. Its absolute magnitude has been speculated to be around -8.38. It has a mass of 20 solar masses and a diameter 110 times the Sun. Deneb is not truly distant – dot A is closest to representing is location relative to the Sun, and it is barely a separate dot from the Sun. To give idea of size, the Sun is 99.86% the mass of the solar system. The Sun's Mass is 1,989,100,000,000,000,000,000 billion kg. (Its exact distance is uncertain.) So there is 8 million times more space in a sphere around the Sun that ends at Deneb, than there is from the Sun out to 15 light-years. It is 19 times more massive than the Sun and has expanded to a size of 203 solar radii. 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. The ratio of the volumes is then V Deneb /V Nearby =3000 3 /15 3 =8*10 6. Created by the San Francisco-based artist Roberto Ziche, the image features the Sun in the background with the planets, Moon and the four dwarf planets lined up in the foreground in the relative scale of size to one another. Deneb estimated radius has been calculated as being 235.90 times bigger than the Sun. The image above shows the uncropped view of Deneb (North is up) through the Takahashi E-180 Astrograph. Deneb is almost twice as hot as our sun, with average temperatures estimated at around 8.525 K. Deneb is around 19 times more massive than our sun, and it has an incredible radius of 203 solar radii, and as such, a diameter of more than 200 times that of the sun. This size comparison of the Sun and the planets in our solar system is going around frequently, but it’s still amazing to see it. Deneb Algedi Apparent and … Deneb along with Altair and Vega As a result of strong stellar … The Deneb Algedi's solar mass is 2.00 times that of our star, the Sun. Deneb has a spectral type of A2Ia, a surface temperature of 8525° Kelvin and a luminosity 54,000 times the Sun. To compare the volume of a sphere from the Sun to these points we use Volume=(4/3)*pi*R 3. Deneb is a blue-white supergiant of the spectral type A2 Ia. Explain your reasoning. English: Comparison of the sun and the star Deneb (250 times the radius) Since the age of Deneb is difficult to determine, I’m not going to provide an age comparison here. The Sun's radius is 695,800km, therefore the star's radius is an estimated 164,137,528.53.km. 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