These colors vary according to the season, light and the viewing angle.

随着季节 光线和观看角度的变化会呈现出不同的色调与水韵。

Active galaxies can look pretty different from each other, and we now think that's due to our viewing angle on their accretion disk.

活动星系之间可能看起来非常不同，我们现在认为这是由于我们观察它们吸积盘的角度不同造成的。

Because, as the viewing angle changes, so does the path length. .

因为，随着视角的变化，路径长度也会发生变化。

But it would only work for a few viewing angles and it's pretty bulky -- so no cloak, unfortunately.

但它只适用于几个视角，而且它非常笨重——不幸的是，所以没有斗篷。