* Hotter stars emit more blue light: Stars with very high surface temperatures emit a lot of blue light. Think of a blacksmith heating a piece of metal. As it gets hotter, it glows from red, to orange, to yellow, then eventually white and even bluish-white.
* Cooler stars emit more red light: Stars with cooler surface temperatures emit more red light. This is why stars that are cooler than our Sun appear reddish-orange.
The Color Spectrum:
* Blue: The hottest stars, around 30,000 Kelvin and above.
* White: Stars with temperatures around 10,000 Kelvin.
* Yellow: Our Sun, with a temperature around 5,500 Kelvin.
* Orange: Stars slightly cooler than our Sun, around 4,000 Kelvin.
* Red: The coolest stars, around 3,000 Kelvin and below.
Important Note: While the color of a star is a good indicator of its temperature, it's not the only factor. Other factors like its size, age, and composition can also influence its color.
