在上面的图例中极限星等是9等。
In the illustration above, the limiting magnitude has been set to 9.
星图中的极限星等，即所显示的最暗星等。
The "limiting magnitude" of stars on the map, ie the magnitude of the faintest star which will be displayed.
要设置星图上显示的最暗恒星的星等，就在极限星等区域更改数值。
To set the magnitude of the faintest star which appears on the map, change the value in the Limiting magnitude field.
在下面的图例中，极限星等是8——最大可能视场等级的默认星等。
In the illustration above, the limiting magnitude has been set to8.
本文给出了用几种达到不同极限星等的星系表确定宇宙分形结构上限截止尺度的公式。
A formula used to determine the upper cut off Rc of the fractal structure of the Universe is given by analysis of different apparent magnitude limited catalogues.
结果表明：可探测星等极限值随观测高度和太阳天顶角的增加接近线性增加；
The results show that the detectable stellar magnitude limits linearly increase with observing height and solar zenith angle.
结果表明：可探测星等极限值随观测高度和太阳天顶角的增加接近线性增加；
The results show that the detectable stellar magnitude limits linearly increase with observing height and solar zenith angle.
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