Astronomers identify first green star

Scientists have identified a white dwarf star that would appear green to human eyes, marking the first such discovery. This rare color results from unique interactions between elements like calcium, sodium, and lithium in the star's atmosphere, which are influenced by debris from disintegrated planetary material. The study analyzed spectra from nearby white dwarfs and highlights how these celestial objects can reveal information about the composition of former planets. Future surveys are expected to find more white dwarfs with distinctive colors as spectroscopic data collection advances.

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