I was thinking it might be some sort of interstellar coordinate system, maybe an updated version of Hubble's law.

我猜可能是某种星际坐标系，或许是哈勃定律的升级版。

We discussed redshift and used Hubble’s Law to calculate how much certain parts of the universe are expanding away from us.

我们讨论了红移并使用哈勃定律来计算宇宙的某些部分正在向远离我们的方向膨胀。

We discussed redshift and used Hubble's Law to calculate how much certain parts of the universe are expanding away from us.

我们讨论了红移，并使用哈勃 定律来计算 宇宙的某些部分正在远离我们膨胀的程度。