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Hi i'm John I study stars and learn about there life cycles this star here is in the Stellar Nebula stage. The Nebula stage is when the star is a big ball of gas and dust. Nebulas are the birthplace of stars
Now is in its Average Star stage. An average star is a luminous globe of gas producing its own heat and light by nuclear reactions. They are born from nebulae and consist mostly of hydrogen and helium gas.
And this is its Red giant stage. A red giant is a large, bright star, with a cool surface. A red giant has a diameter that is 10 to 100 time bigger than the sun
This is a planetary nebula. A planetary nebula is a glowing shell of ionized gas ejected from red giant stars late in their lives.
This is a white dwarf star. Its a very small but hot star and it is its in its last stage in the life cycle of a star like the sun. The white dwarf is about the size of the earth
This is a black dwarf. A black dwarf is a theoretical stellar remnant, specifically a white dwarf that has cooled sufficiently that it no longer emits significant heat or light.
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