1. 76.
    +1
    8 beyler doğru yanıt.

    alın nasa bile öyle diyor:

    "A Solar System can be defined as a star and all the objects orbiting it as well as all the material in that system. Our solar system includes the Sun together with the eight planets and their moons as well as all other celestial bodies that orbit the Sun."

    http://solarsystem.nasa.gov/planets/profile.cfm
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