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GD 40

GD 40 is a white dwarf in the constellation Cetus. It is located about 212 light-years (65 parsecs) away from the Sun. The star's spectrum has been found to show…

GD 40 is a white dwarf in the constellation Cetus. It is located about 212 light-years (65 parsecs) away from the Sun. The star's spectrum has been found to show traces of external metal contamination due to disruption of an extrasolar dwarf planet or an asteroid. The disrupted object should have had at least the same mass as the asteroid 4 Vesta.

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