If the temperature of a star increases from 10,000k to 30,000k, by what factor will the rate of energy radiated per second increase?

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What are the super giant novae stars?

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What do astronomers call the point in the sky that is directly overhead?

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A meteor that reaches the surface of the earth is more accurately called a?

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Explain how is venus different to earth?

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Does astronomy help you with other things in life? If yes, what?

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Which star is called the polaris?

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Who were the ancient indian astronomers?

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How fast is the solar wind?

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Give the common name for the phenomenon which is the result of sunlight reflecting off the earth and faintly illuminating the darkened portion of the moon?

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Explain how old is our earth?

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Is the moon escaping the earth?

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