Star background light的意思|示意

The blue specks are Milky Way stars, and the bluish-white haze in the background is light from older star clusters.

图中的蓝色斑点是银河系的恒星，背景中的蓝白色暮霭是来自更古老的恒星星团的光。

Follow-up observations by Hubble Space Telescope in 2005 separated the light of the slightly offset foreground star from the background star.

由哈勃空间望远镜担任的后续观测在2005年分离出了发自背景恒星、经过前方恒星时略有偏移的光线。

If a large object passes in front of a more distant background star, it may act as a lens, bending and distorting the light of that star so that it may appear to brighten significantly.

如果一个体积足够大的星体从一个距离很远的恒星前面经过，那么会产生透镜效果，使那个恒星的光线产生弯曲或变形，这样就能很清楚的看到这个星体。

Registration and difference can't exclude stars when processing the 16-bit gray images because interpolation error of high light star is larger than the difference of target and background.

相邻帧配准差分去除恒星方法，在处理16位灰度图像时，由于高亮度恒星的插值误差大于目标灰度与背景之差，导致差分不能有效去除恒星干扰。