This age is determined through various methods, including:

* Radiometric dating of meteorites: Scientists can analyze the decay of radioactive elements in meteorites, which are remnants from the early solar system, to estimate the age of the Sun.

* Stellar models: By understanding the processes of stellar evolution, scientists can create models that predict the age of stars based on their properties, such as luminosity and temperature.

* Observations of other stars: Studying the ages of stars in other star clusters can help us understand the age of our own Sun.