While the planetary nebula phase is thought to last for around 10, 000 years, astronomers estimate the age of the outer filamentary portions of this halo to be 50, 000 to 90, 000 years.
虽然行星状星云阶段持续约1万年，天文学家估计其外晕的丝状物质年龄在5万至9万年间。
That day, halo dark room, the smell of damp so I adapted a bit, watching the emaciated old man, tortured by pain dark shed tears, shook hands ticking phase coated with a fleeting tears.
那日，晕暗的房间，潮湿的气味让我有点不那么适应，看着眼前消瘦的老人，被病痛折磨的黯淡流下了泪光，相握的双手滴滴答答沾上了流年的泪光。
Flower for the halo for old eyes, multi-frequency phase ashamed ape Crane asked.
老眼作花花作晕，多惭猿鹤频相问。
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