Friday, October 23, 2026

White Dwarfs Are Actually…Yellow, Green, Pink, and Purple?

Artist’s illustration of a white dwarf appearing greenish from the sodium-rich planetary debris that enriches its atmosphere. (Credit: Mark A Garlick/University of Warwick)

The universe hosts a myriad of star types, including supergiants, giants, main sequence, red dwarfs, brown dwarfs, white dwarfs, and neutron stars. What makes these stars stand out are just their sizes, but their colors, as each one hosts a distinct color based on their surface temperature, specifically orange, red, blue, and white based on cooler to hotter temperatures. While the correlation between star colors and surface temperatures has long been known throughout astronomy, what if star colors could change based on specific criteria, including their atmosphere?



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