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6 June, 17:32

A particular star cluster contains stars all with the same apparent magnitude of + 4. Near the cluster (and at the same distance from the Earth) is a single star with an apparent magnitude of + 1. The star's brightness appears to be the same as the collective brightness of the entire cluster.

How many stars are in this cluster?

Answers (1)
  1. G
    6 June, 18:08
    0
    3,000 stars.

    Explanation:

    Subtract the magnitude of the single star from the magnitude of the star cluster.

    (+4) - (+1) = + 3

    Then multiply your answer by 1000

    = 3,000 is a stars.
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