How many years does solar energy burn?

The age of the sun is about 4.5 billion years. During this period, it will consume half of the hydrogen in the solar nucleus. In other words, these "fuels" are enough for the sun to burn for 4 billion to 5 billion years.

The sun is a star located in the center of the solar system, and it is almost an ideal sphere where hot plasma and magnetic field are intertwined. Its diameter is about 1 392,000 (1.392×106) km, which is equivalent to 109 times the diameter of the earth. The mass is about 2× 10 30 kg (330,000 times that of the earth), accounting for 99.86% of the total mass of the solar system. From the chemical composition, about three-quarters of the mass of the sun is hydrogen, and the rest is almost helium, including oxygen, carbon, neon, iron and other heavy elements with mass less than 2%.

Solar activities: sunspots, spots, spectral spots, flares, prominence and corona.

There are several levels of solar activity:

High-energy particle flow in the corona layer.

Flares in the chromosphere.

Sunspots in the photosphere.

The energy of the sun is produced by nuclear fusion.

It takes more than 8 minutes for sunlight to reach the earth.