Solar System
The Sun and objects orbiting it
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![Solar System: The Sun and objects orbiting it](https://www.newsr.in/en/knowledge/Solar-System_20190129.jpg)
The Solar System is the gravitationally bound system of the Sun and the objects that orbit it. It was formed about 4.6 billion years ago when a dense region of a molecular cloud collapsed, forming the Sun and a protoplanetary disc. The Sun is a typical star that maintains a balanced equilibrium by the fusion of hydrogen into helium at its core, releasing this energy from its outer photosphere. Astronomers classify it as a G-type main-sequence star.
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