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5 August, 22:15

Suppose you observe two stars and you know they have the same luminosity. If one star is ten times closer than the other, the closer star will appear how many times brighter?

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  1. 6 August, 00:38
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    The correct answer is: 100 times.

    Explanation:

    The reason for this can be explained in terms of luminosity and distance.

    Star luminosity also is a variable dependent of the size of the star, but in this example, both stars are the same size.

    The closer a star is, the brighter it will appear.

    If we have two stars that are both the same size and same luminosity but one is ten times closer than the other. (10x) the star that is further away would appear to be 1/100 times brighter than the star that is closer.

    In conclusion, the correct answer is 100 times.
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