If a star 10 parsecs away from us was moved and appeared to be 4 times brighter after movement, how many parsecs is the
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If a star 10 parsecs away from us was moved and appeared to be 4 times brighter after movement, how many parsecs is the
If a star 10 parsecs away from us was moved and appeared to be 4 times brighter after movement, how many parsecs is the star away from us now?
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