Magnitude 15.56 | Constellation Cetus | |
People also search for Nu Ceti, SDSS J001820.5-093939.2 | ||
GD 40 is a white dwarf in the constellation Cetus. The star's spectrum has been found to show traces of external of metal contamination due to disruption of an extrasolar dwarf planet or an asteroid. The disrupted object should have had roughly the same mass of the Solar System asteroid 3 Juno.
References
GD 40 Wikipedia(Text) CC BY-SA