The planetary system, containing Earth, is officially named the "Solar System," which consists of the Sun and its orbiting objects. PlanetsOfTheSolarSystem.net explains that the Sun does not have a scientific name, but is alternately called "Sol," based on Roman mythology. The name "Solar System" derives from the ancient Roman alternative.
The Sun is one of trillions of stars in the universe and is classified as a Yellow Dwarf type star. The Solar System is one of billions of planetary systems, located within the Milky Way galaxy, of the known universe. The Solar System is estimated to be 4.6 billion years old and contains the Sun, eight planets, five dwarf planets, 169 moons and thousands of asteroids and comets. The eight planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. The five dwarf planets are Pluto, Ceres, Haumea, Makemake and Eris.