While the five star colors are blue, white, yellow, orange, and red, there are in-between colors. The color classes are O (blue), B (bluish), A (blue-white), F (white), yellow-whit… See more

The star colors look different once you get outside the Earth’s atmosphere. From Earth, most stars appear white or bluish because they are too dim for the human eye to perc… See more

There are no green stars because star colors come from their black-body spectrum. In other words, the color depends on temperature, much like a candle flam… See more

The black-body spectrum allows for violet, which occurs at a temperature around 39,700 K. That is quite a bit hotter than a blue star (~25000 K). However, the Morgan-Ke… See more