Hey, this is for the more advanced astronomers but I have a question about red and blue shifting in stars.
I was always told (from a very young age, like 5 or something) that red stars are dying / dead stars that have already supernovae, but recently I have been doing hours of self study a day on Astronomy and Astrophysics (As a hobby / Love) and I have been reading the last couple of days I have been interested in Red and Blue shifting to determine the speed / distances of the star / galaxies / object. I know why the light is red and why it is blue and the physics behind it (Basic Newtonian physics, I think?) Anyway, just wondering if amateur astronomers could just play around and work these out with basic scope setups or is it in need of crazy million 100inch scopes and such?
Thanks,
