* Rigel: This star appears blue-white to our eyes. It's a very hot star, with a surface temperature around 11,000 degrees Celsius (20,000 degrees Fahrenheit). Hotter stars emit more blue light, which is why Rigel appears this way.
* Betelgeuse: This star appears reddish-orange to our eyes. It's a cooler star than Rigel, with a surface temperature around 3,500 degrees Celsius (6,300 degrees Fahrenheit). Cooler stars emit more red light, which is why Betelgeuse appears this way.
Remember that these are just approximate colors as they can vary slightly depending on the viewing conditions and your individual perception.
