Type G stars are a category of stars that have a surface temperature between 5,300 and 6,000 degrees Celsius. They are characterized by their yellowish color and are often referred to as yellow dwarfs. The most well-known example of a Type G star is our Sun, which is essential for life on Earth due to its light and heat. These stars typically have a mass similar to that of the Sun and can live for about 10 billion years. Type G stars undergo nuclear fusion, converting hydrogen into helium in their cores. This process generates energy, allowing them to shine brightly in the universe.