evantron9639 evantron9639

11-02-2020
Physics

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What conditions lead you to see an absorption line spectrum from a cloud of gas in interstellar space?

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AyBaba7 AyBaba7

15-02-2020

Answer:

The cloud is cool and lies between you and a hot star.

Explanation:

When there is a significant amount of cool interstellar matter between us and a star, we can see the absorption lines of the gas in the star's spectrum.

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