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How are planetary nebulas different from stars?
Stars are balls of gas that undergo nuclear fusion and have a core, their light come from the energy released during nuclear fusion. Planetary nebulae are the blown-off shells of dying red giant stars, the light of a planetary nebula come from ionized gas and light of other stars.
What do stars start off as?
gas and dust.
What are huge balls of gas that are held together by gravity and give off their own light?
Stars.
Are super giant stars red?
EVERY star, no matter what size, is luminous; it gives off light.
Are red super giant stars luminous?
EVERY star, no matter what size, is luminous; it gives off light.
How do the stars shine?
Stars shine through the process of nuclear fusion, where hydrogen atoms combine to form helium releasing energy in the form of light and heat. This process occurs in the core of the star where high temperatures and pressures are present. The energy produced from nuclear fusion is what causes stars to shine brightly in the sky.
Why does stars start off as dust and gas?
because they were made from hot atoms
What balls of gas giving off heat and light?
stars which the Sun is an example.
When is the best time to spot a white dwarf?
Right after the red giant has thrown off it's outer envelope, revealing a hot and very luminous white dwarf.
The two types of stars that do not fall into the main sequence of an H-R diagram are?
The two types of stars that do not fall into the main sequence of an H-R diagram are white dwarfs and giant stars. White dwarfs are small, hot stars that have exhausted their nuclear fuel, while giant stars are large, luminous stars that have evolved off the main sequence due to changes in their internal structure.
What are huge hot balls of gas that are held together by gravity and give off their own light?
Huge hot balls of gas that are held together by gravity and give off their own light are called stars. The sun is also a star.
What kinds of star forms a red giant?
Our star , the SUN , which currently is a mid-sized yellow star, will form a Red Giant, when all the hydrogen in the Sun has fused into helium, and then into carbon. When it is doing this it will expand to such as size that it will swallow up the four rocky inner planets ( Mercurty, Venus, Earth & Mars).
