Since the oracle bones were dated, we have exact details for events like when cities were built, astronomical events; when taxes were raised or paid, when animals and objects were sold and even when marriages were arranged.

由于甲骨是有日期的，所以我们有确切的事件细节，如城市的建造时间、天事件；何时加税或缴税、何时出售动物和物品，甚至何时安排婚姻。

Fast-forward to around 1,000 years ago, and since people were using round things to keep track of time, astronomers were all about this weird base-60 number system from the Babylonians.

快进到大约 1000 年前，由于们用圆形的东西来记录时间，天们都在研究巴比伦这个奇怪的 60 进制数字系统。

There is also the problem that access to telescopes is always at a premium and historically measuring red shifts has been notably costly in telescope time.

使用天望远总是代价很高，在历史上，测量红移要长时间使用天望远，注目地花钱很多。

And when we go observing on mountaintops, we are given the time of astronomical twilight.

当我们去山顶观测时，会被告知天黄昏的时间。

Based on the amount of energy released and the duration of the burst, astronomers estimate that the dying star must have been 30 times more massive than the Sun.

根据释放的能量总量和爆发持续时间，天推测， 这颗濒死的恒星质量必定是太阳的30倍。

We don't know of any stars that could go supernova in a way that could harm us anytime soon, where soon is like astronomically soon.

我们目前并不知晓有任何恒星会在不久的将来以可能危害我们的方式发生超新星爆发， 这里的“不久”是相对于天时间尺度而言的。

What's interesting is that there's two clocks really, one traditional clock but also on this tower, a clock that keeps track of astrological time.

有趣的是， 这里实际上有两座钟，一座是传统时钟， 而在这座塔上，还有一座记录天时间的钟。

By timing the transit from two widely-separated locations, teams of astronomers could calculate the parallax angle—the apparent difference in position of an astronomical body due to a difference in the observer's position.

通过从两个相距甚远的地方计算行星的凌日时间，天小组可以计算出视差角——天体的位置由于观测者的位置不同而产生的明显差异。

Years later, precise measurements were invented because the passage of time was extremely important for astronomers and priests who were responsible for determining the exact hour for daily rituals and for important religious festivals.

多年以后，精确的计时方法得以发明，因为对于负责确定日常仪式和重要宗教节日确切时间的天和祭司来说，时间的流逝极为关键。

In the old days, it means like hundred years ago, time was something that was astronomical.

莱：在过去，这意味着大约一百年前，时间是天数字。