What is sun

The Sun is a 4.5 billion-year-old yellow dwarf star – a hot glowing ball of hydrogen and helium – at the center of our solar system. It's about 93 million miles (150 million kilometers) from Earth and it's our solar system's only star. Without the Sun's energy, life as we know it could not exist on our home planet.
✓   Properties 
Surface temperature: 5,778 K
Mass: 1.989 × 10^30 kg
Radius: 696,340 km
Distance to Earth: 149.6 million km
Age: 4.603 billion years
Density: 1.41 g/cm³

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