Life Cycle of A Star

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What is the life cycle of a star?

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The life cycle of a star is the series of stages that a star goes through from its formation to its end, including stages like nebula, main sequence, red giant, supernova, and black hole or neutron star.

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What is a nebula?

Back

A nebula is a giant cloud of dust and gas in space, often the birthplace of stars.

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What defines a main sequence star?

Back

A main sequence star is a stable star that is in the longest phase of its life cycle, where it fuses hydrogen into helium in its core.

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What happens during the red giant phase?

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During the red giant phase, a star expands and cools after exhausting the hydrogen in its core, leading to the fusion of heavier elements.

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What is a supernova?

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A supernova is a powerful and luminous explosion that occurs at the end of a star's life cycle, particularly for massive stars.

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What is a neutron star?

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A neutron star is the remnant core of a massive star that has undergone a supernova explosion, composed almost entirely of neutrons.

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What is a black hole?

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A black hole is a region in space where the gravitational pull is so strong that nothing, not even light, can escape from it.

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What is the significance of a star's mass?

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A star's mass determines its life cycle, including its temperature, luminosity, and the type of supernova it may produce.

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What is a pulsar?

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A pulsar is a type of neutron star that emits beams of radiation and rotates rapidly, appearing to pulse as it spins.

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What is the difference between a white dwarf and a neutron star?

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A white dwarf is the remnant of a low to medium mass star, while a neutron star is the remnant of a high mass star after a supernova.