It was there at perigee on Sunday night.

周的近会出现超级亮。

A supermoon happens when the Earth is between the sun and the closer-than-usual moon.

当球位于太阳与行经近的球中间时，就会出现超级亮的景观。

The moon is about 48,000 kilometers closer to Earth on one side of its orbit than the other.

球行经近时，球距球的距与另一端相差约48000公里。

The reason is because it was at Perigee at the closest point of its elliptical orbit around the earth.

原因是因为它位于近，是其绕球椭圆轨道的最近。

Each month, the Moon passes through perigee (the point closest to Earth) and apogee (the point farthest from Earth).

每个，球都会经过近（球最近的）和远（球最远的）。

And at the perigee of the orbit, or the lowest point, it dips into the earth atmosphere and basically burns back up.

在轨道的近，或最低，它浸入球大气层，基本燃烧起来。

When there is a full moon on the perigee side of its orbit, it's bigger and brighter than usual, and can look especially large close to the horizon due to an optical illusion.

当满位于其轨道的近一侧时，它看起来会比平时更大、更亮，而且由于光学错觉，在接近平线时看起来会特别大。

Li explained that after separating from the rocket, the cargo craft moves from the perigee orbit to that of the space station by means of long-range autonomous guidance and near-range autonomous control to achieve fast-docking.

李解释说，货船与火箭分后，通过远程自主制导和近距自主控制，从近轨道移动到空间站轨道，实现快速交会对接。