do astronomers take motion into account when they date celestial bodies?

When they look at a galaxy and say it’s 4 billion ly away, do they mean that 4 billion years ago it was 4 billion ly away, or it is now? I mean do they take into account the speed it’s moving away? [...]

which accounting course would be the best to do to become an accountant without wasteing time ?

i have no previous experience or qualifications on this area but also have no time to waste some people have recomanded me aat but some others acca i need to do something that will give me qualification that will [...]