xīng děng
意思解释：（The star）512倍，星等即差一等。
表示天体相对亮度的标志。星等通常指视星等，即用肉眼观察到的星体亮度。人眼可见的星按感觉的亮度分为6等。每相差一个等级则亮度差2.512倍。等数越大星光越暗弱。…
Show the celestial body sign relative to brightness. The star point to apparent magnitude normally, use the brightness of celestial or heavenly body that naked eye observes namely. The star with person visible eye is by brightness cent of the feeling 6 etc. Every differ brightness of a grade criterion is 2.512 times poorer. Yue Daxing waiting for number is jumped over solely dark weak. ...
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