A close encounter with another star put the doomed star (orange circle) on a path that took it near a supermassive black hole.
一颗过于接近已经熄灭的恒星的恒星，会进入一颗超级巨型黑洞的轨道。
It started as a small orange circle and then grew bigger and bigger till all the colours came out... it lasted for about 15 minutes and it slowly went off.
它开始是一个小的橙色圆圈，然后变得越来越大，直到所有的颜色出来…持续了约15分钟后慢慢消失。
The degradation of methyl orange was high, which was related with the peak value, pulse frequency and duty circle of positive pulse and anode area.
甲基橙的脱色程度与峰值电压、脉冲频率、占空比、阳极电极面积等有关。
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