A solar system consists of one or more stars and planets orbiting a common barycentre. Technically, the term refers to the star around which Earth orbits (the Sun, which is called Sol), but either "solar system" or the more general term "star system" can be used to refer to any planet-star pair. They are found within stellar bubbles.
There are 100 billion+ solar systems in the Milky Way.
Size : on average : millions and millions km ( diameter )
Dimension : 3D
Kardashev scale : 2.6
Age : few billion years
Death : billions, trillions of years from 2019
Contained by : Galaxy