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Stars are enormous spheres of ignited gas that light the cosmos. They come in many different types and sizes. Which among the following is not a known type of star?
- a)White dwarf
- b)Red giant
- c)Green dwarf
- d)Red dwarf
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
Stars are enormous spheres of ignited gas that light the cosmos. They ...
- White dwarf: When a star has completely run out of hydrogen fuel in its core and lacks the mass to force higher elements into fusion reaction, it becomes a white dwarf star.
- Red dwarf: Red dwarf stars are the most common kind of stars in the Universe. These are main sequence stars but they have such low mass that they’re much cooler than stars like our Sun. The smallest red dwarfs are 0.075 times the mass of the Sun, and they can have a mass of up to half of the Sun.
- Red giant: A red giant is a star that is past its peak and has consumed its core's supply of hydrogen fuel. As a result, helium has built up in the core, hydrogen has fused in the outer shells, and the star has expanded into a giant red monstrosity.
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Stars are enormous spheres of ignited gas that light the cosmos. They ...
Types of Stars
Stars are classified into various types based on their characteristics, such as size, temperature, and brightness. Here are some commonly known star types:
Green Dwarfs: An Imaginary Type
The term "Green Dwarf" does not exist in the classification of stars.
Conclusion
In conclusion, among the options provided, "Green Dwarf" is not a known type of star. Instead, recognized classifications include White Dwarfs, Red Giants, and Red Dwarfs, each with distinct properties and characteristics.
Stars are classified into various types based on their characteristics, such as size, temperature, and brightness. Here are some commonly known star types:
- White Dwarfs: These are small, dense remnants of stars that have exhausted their nuclear fuel. They often shine faintly and are very hot initially but cool down over time.
- Red Giants: These stars are in a later stage of stellar evolution. They have expanded and cooled, giving them a reddish appearance. They are much larger than the Sun and can be thousands of times brighter.
- Red Dwarfs: These are small and relatively cool stars on the main sequence. They are the most common type of star in the universe, known for their longevity and dim light.
Green Dwarfs: An Imaginary Type
The term "Green Dwarf" does not exist in the classification of stars.
- Non-existent Classification: There is no recognized star type called "Green Dwarf." Stars do not emit light primarily in the green spectrum; instead, they emit a range of colors depending on their temperature.
- Color Perception: The perception of color in stars is often a result of the combination of various wavelengths of light emitted. For example, a star may appear red, blue, or white, but not green.
Conclusion
In conclusion, among the options provided, "Green Dwarf" is not a known type of star. Instead, recognized classifications include White Dwarfs, Red Giants, and Red Dwarfs, each with distinct properties and characteristics.
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Stars are enormous spheres of ignited gas that light the cosmos. They come in many different types and sizes. Which among the following is not a known type of star?a)White dwarfb)Red giantc)Green dwarfd)Red dwarfCorrect answer is option 'C'. Can you explain this answer?
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