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Astronomers report first known green star
Astronomers identified WD J1330+6435 as the first known green star, according to a study in RAS Techniques and Instruments.
Why it matters
The finding expands understanding of the range of colours and compositions stars can show.
Background
The designation WD indicates a white dwarf, the dense remnant of a star like the Sun. Stars normally appear white to the eye rather than green because they emit across many wavelengths.
The story so far
- Astronomers report discovery of first green star
- Astronomers report first known green star
Sources
- Popular Science ↗October 15, 2026
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