The five brightest stars are all reddish in hue. Shading the others at apparent magnitude 3.8 is Alpha Apodis, an orange giant that has around 48 times the diameter and 928 times the luminosity of the Sun.
问一下各位老师，第二个句子的主语是省略了吗？感觉不太像是动名词作主语，若是省略的话这是什么省略方法？谢谢老师！
Shading the others at apparent magnitude 3.8 is Alpha Apodis, an orange giant that has around 48 times the diameter and 928 times the luminosity of the Sun.
这是一个倒装句。主语为 Alpha Apodis，逗号后为主语的同位语。因为主语+同位语使得主语非常长，为了防止头重脚轻，主语后移至句末，目前分词短语 Shading the others at apparent magnitude 3.8 前置与is 之前。构成完全倒装句。
假如不到装的话，句子如下：
Alpha Apodis, an orange giant that has around 48 times the diameter and 928 times the luminosity of the Sun, is shading the others at apparent magnitude 3.8
