The Sun can be considered an 'average' star that was born about 4.6 billion years ago. There are trillions of stars smaller and dimmer than the Sun, as well as there are trillions of stars bigger and brighter than the Sun across the universe.
- The hottest stars have surface temperatures of approximately 50,000 Kelvin degrees (Kelvin = Celsius + 273.15); whereas the cooler stars have surface temperatures of 2,000 Kelvin degrees.
- On the other hand, the surface temperature of the Sun is about 6000 Kelvin degrees.
- The maximum wavelength for the Sun's spectrum is at about 635 nanometers (nm), a red wavelength.
- The Sun is a medium-sized star that has a diameter of about 1,400,000 kilometers (km).
In conclusion, the Sun is a medium-sized 'average' star (i.e., with medium brightness and temperature) compared to other stars of the universe.
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