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How do the stars shine?
Stars are giant balls of gas and fire.
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.
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.
Are planetary nebulae sites for planet formation?
No, they are ionized gases thrown off stars near the end of their fusion cycles. They are expanding clouds of matter, quite different from the nebulae in which stars form.
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.
How do stars get blasted off?
an expanding Shell of hydrogen gas envelop the core of the star which collapses ,it becomes a red giant. In more massive star with hotter core ,helium fuses to carbon,silicon or oxygen, synthesizing the heavier element .even more massive stars may burns iron generating a cooling effect . The core implodls and the outer layer of the stars are bloom away as a supernova
What happens to stars?
it retired or expired
