eli5 If we are a spinning ball – spinning in our own solar system – which is spinning within an arm of a galaxy – why are the constellations in the same place?

Question

eli5 If we are a spinning ball – spinning in our own solar system – which is spinning within an arm of a galaxy – why are the constellations in the same place?

In: Physics

Answer 1

They aren’t, if you mean the same place of the sky. The constellations move throughout the night/year. If you take a picture straight up every night at the same time, you’ll see the constellations move over the course of a year.