They observed variable stars in the Andromeda Galaxy that allowed them to get the distance to the galaxy.

他们观测了仙女座星系中的变星，这使得他们能够到达星系的距离。

And it was, in fact, a variable star.

事实上，它是一颗变星。

" Var" here stands for " variable." Hubble had found a variable star in the Andromeda Nebula.

“Var”在这里代表“变星”。哈勃望远镜在仙女座星云中发现了一颗变星。

I observe from seven or eight till about two in the morning, with a view to my great work on variable stars.

我从七八点观察到凌晨两点左右， 以期完成我在变星方面的伟大工作。

It was the review of a pamphlet by an American astronomer, in which the author announced a conclusive discovery with regard to variable stars.

那是一位美国天文学家对一本小册子的评论，作者在书中宣布了关于变星的一个结论性发现。

The approaches include looking at supernovae and variable stars in distant galaxies and measuring how fast they're receding, as well as how far away they are.

这些方法包括观察遥远星系中的超新星和变星，并测量它们后退的速度以及它们的距离。

Actual variable stars do exist, but Tabby's Star doesn't fit that profile, it's what's known as an F-type main-sequence star, and shouldn't behave anything like this.

实际的变星确实存在， 但 Tabby's Star 不符合这种情况，它是所谓的 F 型主序星， 不应该有这样的行为。

'I have made an amazing discovery in connexion with the variable stars, ' he exclaimed. 'It will excite the whole astronomical world, and the world outside but little less.

“我在变星方面有了惊人的发现，”他惊呼道。 “它会激发整个天文界的兴奋，而外面的世界却不会那么兴奋。”

'I am preparing a work on variable stars. There is one of these which I have exceptionally observed for several months, and on this my great theory is mainly based.

“我正在准备一部关于变星的作品。其中之一是我几个月来特别观察到的，我的伟大理论主要基于此。

Compared with comets, variable stars, which he had hitherto made his study, were, from their remoteness, uninteresting. They were to the former as the celebrities of Ujiji or Unyamwesi to the celebrities of his own country.

与彗星相比，他迄今一直在研究的变星由于距离遥远而显得乏味。他们之于前者就像乌吉吉的名人或乌尼亚姆维西之于他自己国家的名人。