Eli5. A question trying to understand if you would see events on a planet happening faster if you moved towards it

Question

If a planet was 5 million light years away from earth, the James Webb from earth would see it as it was 5 million years ago.

And say if we continued to watch this planet from the earth we would see events happening at the same speed on earth.

if I was to fly towards this planet in a space ship with a telescope, would I see events on the planet being sped up and if I was to fly away would events happen in slow motion?

In: Physics

Answer 1

you would due to the dopler effect. but you also get time dillation. as you move relative to an object, its time appears to change. you have to be moving very fast to notice though

here is a good video series on relativity https://youtube.com/playlist?list=PLoaVOjvkzQtyjhV55wZcdicAz5KexgKvm