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9 November, 20:22

A light year is approximately 9.5 million km long. 'Barnard's Star' is 6 light years away from Earth. Calculate how many millions of kilometres this is.

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Answers (2)
  1. 9 November, 20:45
    0
    6 light years = 57 million km

    Explanation:

    Given;

    A light year = 9.5 million km

    To calculate how far is 6 light years;

    6 light years = 6 * 1 light year = 6 * 9.5 million km

    6 light years = 57 million km
  2. 9 November, 20:48
    0
    57 million kilometres

    Explanation:

    We are given that:

    1 light year = 9.5 million kilometres

    To get 6 light years, we simply multiply 6 by 9.5 million kilometres:

    6 light years = 6 * 9.5 million = 57 million kilometres

    St Bernard's star is 57 million kilometres away from the earth.
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