In the direction of a particular star cluster, interstellar extinction allows only 12% of a stars light to pass through each kiloparsec ( 1000 pc) of the interstellar medium. If the star cluster is 4.0 kiloparsecs away , what percentage of its photons survive the trip to Earth?
In the direction of a particular star cluster, interstellar extinction allows only 12% of a stars light to pass through each kiloparsec ( 1000 pc) of the interstellar medium. If the star cluster is 4.0 kiloparsecs away , what percentage of its photons survive the trip to Earth?
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In the direction of a particular star cluster, interstellar extinction allows only 12% of a stars light to pass through each kiloparsec ( 1000 pc) of the interstellar medium. If the star cluster is 4.0 kiloparsecs away , what percentage of its photons survive the trip to Earth?
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