RAHIL008 Messages 18 Reaction score 0 Thread starter Nov 16, 2014 #1 Why do objects that are distant and moving appear to be moving slowly than the objects that are close?
Why do objects that are distant and moving appear to be moving slowly than the objects that are close?
Orodruin Staff Emeritus Science Advisor Homework Helper Insights Author Gold Member 2025 Award Messages 22,832 Reaction score 14,876 Nov 16, 2014 #2 By this I assume you mean why they do not move as much in your field of view. The reason is that in order to change by the same angle in your field of view, an object which is further away must move further.
By this I assume you mean why they do not move as much in your field of view. The reason is that in order to change by the same angle in your field of view, an object which is further away must move further.
A.T. Science Advisor Messages 13,338 Reaction score 4,236 Nov 16, 2014 #3 For the same reason that distant objects appear smaller.
Calion Messages 14 Reaction score 2 Nov 16, 2014 #4 Google 'parallax'! This is one of the most accurate ways that astronomers measure distances to (nearby) stars.
Google 'parallax'! This is one of the most accurate ways that astronomers measure distances to (nearby) stars.
PsiLenc Messages 1 Reaction score 0 Nov 17, 2014 #5 ty for the info, very useful ... haven't found the word for the phenomena before...^^^** ty