Sun

The Sun is the star at the center of our solar system and the most important source of energy for life on Earth.

The Sun is a nearly perfect sphere of hot plasma, with internal convective motion that generates a magnetic field through a dynamo process. It accounts for about 99.86% of the total mass of the solar system and provides the light and heat that sustain all known life.

Sun facts

• Diameter: 1,392,700 km
• Mass: 1.989 × 10³⁰ kg
• Moons: None
• Orbit distance: — (center of the Solar System)
• Orbit period: —
• Surface temperature: ~5,500°C (photosphere)
• Core temperature: ~15 million°C
• First record: Since prehistoric times
• Recorded by: Ancient civilizations

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