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Biology, 19.05.2020 02:23 kayla942783

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Procyon B
Polaris
Vega

It is fusing hydrogen at its core.
It has lost its outer shell and retained only a hot core that is slowly losing its brightness.
Its temperature has decreased, but it is shining brighter than before.

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Procyon B
Polaris
Vega

It is fusing...
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