White Dwarfs Aren’t Just White. Scientists Discover Dying Stars Turning Pink and Green

Astronomers find that a white dwarf’s density and the kind of material it absorbed from its surroundings can produce a rainbow of shades in the star’s atmosphere.

白矮星並非只有白藍色，新研究認為大氣密度和吸積的行星物質會讓部分白矮星呈現粉、綠、紫等顏色。研究分析152顆近距白矮星，僅5顆顏色異常，此前認為白矮星多為藍色可能是觀測偏差。