- #1
tzimie
- 259
- 28
When 2 bodies are locked over relatively large distances (like locked Earth and Venus), do they lock, naively speaking, to the position where another's body is seen (delay distance/c is taken into account) or to the position where other body is actually at the moment (because of Relativity of simultaneity we have to chose frame here, but there is no problem for slowly moving bodies like Earth and Venus - it could be their center of mass, or Sun, there is a little difference)