Re: The OFFICIAL TNG Blu-Ray Season 1 Discussion Thread I think it makes sense that "solar" system could be a "generic-ized" term no longer applying to just the system around the star called "Sol." I mean they still call the main star(s) a "sun" (an Earth-specific term/name for our star) and bodies orbiting planets a "moon" (the English word/term for Luna.) In fact there's plenty of time a lunar orbit is referred to and the soil on a planet is called "earth." It's probably best to think of the bodies in our solar system to be the "base names" for objects. Main star(s)= a sun. The entire system = solar system. Objects orbiting planetary bodies = "moons." Our planet and solar system is just the generic point language is based from. At least from a Human/English point of view.