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What is the implication if the distance to the nearest star is 4. 2 light-years?

kincasdce123

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What is the implication if the distance to the nearest star is 4. 2 light-years?

What is the implication if the distance to the nearest star is 4. 2 light-years?

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The star is 4. 2 million AU away.

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The light we see left the star 4. 2 years ago.

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The star must be very old.

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The star must be very young.

Textbook

ASTRO

ASTRO

Edition: 3^rd

Authors: Ghose, Milosevic-Zdjelar, Read

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