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.

youdao

虽然火星的表面积相当于地球的陆地面积，但是它的直径只有地球的一半，密度也小于地球，只有地球体积的15%，地球质量的11%。

Even though Mars has almost the same land surface area as Earth, it has only half the diameter and less density than Earth - possessing roughly 15% of Earth's volume and 11% of its mass.

youdao