たいようけい
太陽系
1. solar system
2. Solar SystemThe Solar System consists of the Sun and the astronomical objects gravitationally bound in orbit around it, all of which formed from the collapse of a giant molecular cloud approximately 4.6 billion years ago. The vast majority of the system's mass is in the Sun. Of the many objects that orbit the Sun, most of the mass is contained within eight relatively solitary planets whose orbits are almost circular and lie within a nearly flat disc called the ecliptic plane.
Read “Solar System” on English Wikipedia
Read “太陽系” on Japanese Wikipedia
Read “Solar System” on DBpedia
Read “Solar System” on English Wikipedia
Read “太陽系” on Japanese Wikipedia
Read “Solar System” on DBpedia
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