Comets · 2
Dormant Comets
Extinct or dormant cometary nuclei on comet-like orbits.
- (196256) 2003 EH1(196256)
An asteroid on a short-period, comet-like orbit believed to be a dormant or extinct comet nucleus — the parent body of the sharp, brief Quadrantid meteor shower.
TypeTransition objectDiscovered2003 - 3552 Don Quixote(3552)
A large near-Earth object on a comet-like orbit long suspected to be a dormant comet; faint carbon-dioxide activity was detected in 2013, suggesting it is not fully extinct.
TypeTransition objectDiscovered1983