Hi everyone, I signed up just to ask you guys a quick question, as most of you will know infinitely more than I do on this subject. I'm not an astrophysicist, I have a strong interest in the universe and cosmology, but it's more of a hobby for me than a central focus, so I apologise in advance if this seems very elementary and obvious. Anyway, I just wanted to clear something up for a science fiction story I'm currently planning. I know red shift is used to calculate the speed at which different galaxies are moving away from our own - but does that also apply to stellar objects within the same galaxy? I know that stellar bodies within the same galaxy all orbit a central point at the galactic core, but does that hold everything in place? For example - would a star say, 5,000 light years from Earth have the same red shift now as thousands of years ago? Again, apologies if this seems very basic and obvious, but I thought it best to get clarification on this.