在图的下方说明了对象的各个部分。

The parts of the object are explained below the figure.

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该图来自斯隆数字巡天计划，可以看出那些小行星（画绿圈圈的）在移动，而右下方的NGC4517A星系就很呆。

In images from the Sloan Digital Sky Survey, asteroids (circled in green) appear to move over time. Galaxies like NGC4517A, at lower right, don't.

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在图的左下方，从水面反射的阳光使这部分海水表面显现银色。

Sunlight reflecting off the surface of the water is turning the water's surface silver in the lower left corner.

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