SpaceSimCentral

By the way: When pressing <TAB> twice, you get a special screenshot view without cockpit controls and instead the name of the (nearest) planet, system and sector coordinates in the upper left. If you take screenshots in that mode you'll have the coordinates on it (you can notice that on my screenshots above). Though, if something significant changes with the universe or planet generation algorithms, the planet may no longer be there (or look very different). Or as Douglas Adams put it: "There is a theory which states that if ever anybody discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another theory which states that this has already happened."