Interesting Red Giant Star Facts: 11-20. Some supergiant stars are as big as the entire Solar System! The star Polaris (the North Star), and the star Betelgeuse, in the constellation Orion are supergiant stars. Since the pressure is no longer concentrated on a smaller surface area, the surface temperature of the giants so formed have lower temperature. They are extremely hot and bright, with surface temperatures of between 20,000 - … Neutrons - A neutron star is created from the collapse of a giant star.

# 3. Supergiants are some of the largest stars in the Universe. 11. As a result of strong stellar winds, it loses about a millionth of a solar mass each year. Rigel is actually a three star system consisting of the blue supergiant Rigel A and two distant and much dimmer companions. Blue hypergiants are extremely luminous. # 2. With an estimated temperature of 8,525 K, it is 196,000 times more luminous than the Sun. # 9. It is 19 times more massive than the Sun and has expanded to a size of 203 solar radii. Giants - Giant stars may be main sequence stars like a blue giant, or stars that are expanding like red giants. Half the size of our sun, with a life cycle of 100 billion years. The star Pollux is an orange giant.

Rigel—a blue supergiant. 12. Stars with the shortest lifespan are the largest. Rigel is around 800 light years from Earth and is the brightest star in the constellation of Orion. Star type Deneb is a blue-white supergiant of the spectral type A2 Ia. The sun will eventually become a red giant. Blue supergiants are supergiant stars (class I) of spectral type O. It's very tiny, but very dense. Once a star nears the end of its life, it must resort to burning helium.

Blue giant stars are rare in the galaxy compared to other stars. # 5. They are larger than Giant stars, and smaller than Hypergiants. # 6. Artist's impression of the blue giant Rigel, one of the brightest stars in the night sky. After this massive swelling up, the energy that is created because of helium fusing in carbon is now spread over a bigger surface area. The most common stars are Red Dwarfs. # 10. Blue supergiants have short life spans and are rare compared to other stars. After a few million years, these type of starts will begin to burn helium and swell up further. They have a diameter about 1,000 times bigger than the Sun (the orbit of Jupiter). # 7. They are about 1.6 billion kilometers across.

# 8.

It is blue because it burns hotter as it begins using the remaining hydrogen. Red Giant. Kids Fun Facts Corner # 1. For more information on the birth and death of a star, see sections – How Stars are Born & Star Life-Cycle – Supernovas. A blue giant star is a swelling middle-aged star that is running out of hydrogen to burn but hasn’t started burning helium.