We have the mass of the sun, we have the radius of the sun so you can calculate the moment of inertia of the sun.

我们知道太阳的质量，太阳的半径,所以可以计算出,太阳的惯性是多少。

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It has to do, of course, with the moment of inertia, but again, it's independent of mass, radius and length.

肯定是，与时间惯量有关，再次，它与材料无关，还有半径和长度无关。

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So, of course, the moment of inertia is extremely modest compared to the sun, because the radius is so small and the moment of inertia goes with the radius squared.

当然，转动惯量是,怎么也比不上太阳的，因为半径太小,而转动惯量,与半径的平方有关。

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