火星大小几乎是地球的一半质量是地球的1/10.
Mars is nearly half the size of Earth but around one tenth the mass.
由于地球看起来是个球形,同一时间太阳只能照到地球的一半。
Since the earth looks like a ball, the sun can shine on only half of it at a time.
GD 362的直径约为地球的一半,质量却和太阳差不多,因此比地球更致密。
GD 362's diameter is about half of the Earth's, but its mass is about that of the sun, making GD 362 far more dense than our planet.
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