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。
Astronomers generally measure the size of stars in terms of the radius of our sun.
天文学家一般以太阳的半径为基本单位表征恒星的大小。
The sun will then become what's called a red giant, and its radius will reach just past the orbit of Venus.
太阳就变成了所谓哦红巨星,它的半径将会达到以前金星的运行轨道。
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。
If m is the mass of the sun, the radius of the event horizon is three kilometers.
视界的半径就是,3公里,若m是太阳的三倍重。
If m is the mass of the sun, the radius of the event horizon is three kilometers.
视界的半径就是,3公里,若m是太阳的三倍重。
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