* Temperature: Blue stars are much hotter than red stars.
* Color: This is directly related to temperature. The hotter a star, the bluer it appears. The cooler a star, the redder it appears.
* Size: Blue stars are typically larger and more massive than red stars.
* Lifetime: Due to their higher mass and temperature, blue stars burn through their fuel much faster and have shorter lifespans than red stars.
* Luminosity: Blue stars are far more luminous (brighter) than red stars.
Important Note: There is a wide range of sizes and temperatures within both red and blue stars. A "red giant" is a very large and cool star, while a "blue dwarf" is a smaller and hotter star.
Let me know if you'd like to explore any of these points in more detail!
