A G-Type Star is a category of stars that have a surface temperature between 5,300 and 6,000 degrees Celsius. These stars are typically yellow in color and include our own Sun. G-Type Stars are known for their stable energy output, which allows for the development of planets with potential life. These stars are part of the Hertzsprung-Russell diagram, where they are classified as main-sequence stars. G-Type Stars usually have a lifespan of about 10 billion years, and they fuse hydrogen into helium in their cores. This process contributes to their brightness and longevity in the universe.