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Red giant

A red giant is a large non-main sequence star of stellar classification K or M; so-named because of the reddish appearance of the cooler giant stars.

As Earth's sun is of one solar mass, it is expected to become a red giant in about six billion years.

Note: This article excerpts material from the Wikipedia article "Red giant", which is released under the GNU Free Documentation License.

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last updated on 2014-09-30 at 4:25 pm EDT

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