恒星周期 sidereal period
- 恒星生命周期的模式,大部分取决于它们的初始质量。
The life cycles of stars follow patterns based mostly on their initial mass. - 作为银河系最密集的一部分,大量恒星周期性诞生消亡产生了这些尘埃。
Being such a crowded part of the Galaxy, there have been many cycles of starbirth to produce such dust. - 科学家今天宣布,当我们的恒星脱离最近的太阳黑子活动周期时,太阳最有可能进入冬眠。
When our star drops out of its latest sunspot activity cycle, the sun is most likely going into hibernation, scientists announced today.
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