3 ms·
> The gravitational force vector for a star in the sky N light years away points to where the star would be if kept moving at constant speed for N years. FTFY.
by acchow 13y ago
> The gravitational force vector for a star in the sky N light years away points to where the star would be if kept moving at constant speed for N years.
FTFY.
- hmsimha 13y agoInteresting. I don't know enough about physics to have a clue one way or the other, but even if it was the prior case (we base our model on where the star is for gravitational computations based on the light we are receiving), that's just what it is -- a model. So if there is a lapse in our understanding that doesn't take into account that the star's gravitational effect on us actually depends on its current position then that may need to be corrected.
- fubari13 13y agoConstant speed is irrelevant in space-time calculations.
- stcredzero 13y ago> FTFY You learn something new everyday!