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प्रश्न
Name the different types of stars.
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उत्तर
The different types of stars in the universe are stated below:
- Sun-like Stars: These are particularly similar to the Sun in size, but there is a lot of temperature variation. Examples are Alpha Centauri, Tau Ceti, etc.
- Red Giants: These stars do not have an outer layer as hot as the Sun, with temperatures ranging from 3000° C to 4000° C, but they have a very high luminance compared to the Sun. They are red, and their diameter is 10 to 100 times that of the Sun.
- Super Nova: They are more extensive and brighter than the red giant stars and the Sun. They are also considered the primary source of heavy elements in the universe.
- Binary or Twin Stars: A pair of two stars in which one revolves around the other or a common centre is known as a binary or twin star.
- Variable Stars: These stars have a variable shape and brightness, i.e., they keep changing whenever they expand or contract. Their brightness decreases when they expand and increases when they contract. An example is Pole Star.
संबंधित प्रश्न
Do all the stars in the sky move? Explain.
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State whether the following statement is ‘True’ or ‘False’.
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In the given figure out of the positions A, B, C and D which will indicate the position of the sun? Draw the sun at the appropriate position.
Stars mainly consist of ______.
Write a note on the planet.
Stars appear to twinkle. Give reason.
Briefly explain
- brightness
- color of the star.
