And every time there's a galaxy -- at its location there's a galaxy -- and if we know anything about the galaxy, which we do, because there's a redshift measurement and everything, you put in the type of galaxy and the color, so this is the real representation.
每当遇到一个星系 - 在它在位置上有一个星系 如果我们对那个星系了解些什么的话，我们很了解 因为我们有红移测量和别的手段 你就记录下来星系的类型和颜色 所以这就是真实的表示法