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类别全部 - temperature - project - sun - space

作者：Violet Keeler 6 年以前

282

violet's space procjet...

violet's space procjet...

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violet's space procjet...

how is the sun made?

pictures?

how hot is the sun?

what is a sun spots?

Subtopic

Sunspots are darker, cooler areas on the surface of the sun in a region called the photo sphere.