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| Originally Posted by Cho u mean sol is the collective name of our sun & planets together.I didnt know that. |
No, Sol is the name of our sun. The term "solar" system refers to the planets that revolved around the sun... named at a time when there was no knowledge of additional planets or suns. The term solar system refers to all planets that revove around a sun. The word solar was used as an adjective to describe the systems. "-ar" is a Latin ending added on to the word "sol" which is used to mean sun, not just our star.
The term "Sol system" is the name of our planetary system because of our star being named Sol. There is only one solar system with Sol as the star (or sun), but there are many other solar systems orbiting stars (suns) of other names.